What's in CBD Oil? Every Ingredient, Carrier Oil, and Additive Explained
Pick up a bottle of CBD oil and read the ingredient list — you might see MCT oil, hemp extract, hemp seed oil, terpenes, natural flavors, polysorbate 80, or a dozen other terms. Some of these ingredients enhance absorption and effectiveness; others are neutral excipients; a few are worth scrutinizing. This guide explains exactly what's in your CBD oil, why it's there, and what to look for — and avoid — on a label.
The Core Ingredients: What Every CBD Oil Contains
Every CBD oil has two essential components: a hemp-derived extract providing the active cannabinoids, and a carrier medium. Everything else on the ingredient list is an additive — potentially beneficial or potentially problematic depending on what it is and why it's there.
1. Hemp Extract / CBD Extract
This is the active ingredient — the reason you're taking the product. You'll see it listed as:
- Hemp extract or full spectrum hemp extract — contains CBD plus terpenes, minor cannabinoids, and trace THC (≤0.3%)
- Broad spectrum hemp extract — same compounds but with THC removed
- CBD isolate or cannabidiol — pure CBD, no other cannabis compounds
- Hemp oil — ambiguous and potentially misleading; could mean hemp seed oil (which contains no CBD) or hemp extract (which does)
Critical distinction: "Hemp oil" and "hemp seed oil" do NOT contain CBD unless specifically noted alongside a cannabinoid panel showing CBD concentration. Hemp seed oil is pressed from hemp seeds, which contain no cannabinoids — it's a nutritious cooking oil but not a CBD product. This labeling ambiguity is used by some companies to sell hemp seed oil products at CBD-like prices. Always look for "hemp extract" or explicit CBD content (in milligrams) to verify you're buying an actual CBD product.
2. Carrier Oil or Delivery Medium
Hemp extract is oil-soluble and must be dissolved in a carrier for consumption. The carrier also affects absorption, taste, stability, and additional nutritional content. Here's a complete breakdown of what each carrier brings:
Carrier Oils: A Complete Guide
MCT Oil (Medium-Chain Triglyceride Oil)
What it is: A refined oil extracted from coconut oil (most common) or palm kernel oil, concentrated in medium-chain fatty acids — primarily caprylic acid (C8) and capric acid (C10).
Why it's used: MCTs are the most popular CBD carrier for several reasons:
- Superior bioavailability: Unlike long-chain fatty acids that require micelle formation and lymphatic transport, MCTs are absorbed directly from the intestine into portal circulation, reaching the liver quickly. This faster, more direct route means CBD dissolved in MCT may absorb more efficiently than CBD in longer-chain oils.
- Stability: MCT oil has a very high oxidative stability and long shelf life without refrigeration. This makes it practical for products that may sit on shelves or in medicine cabinets for months.
- Neutral flavor: MCT oil has a very mild, slightly coconut-adjacent taste that doesn't compete with hemp flavor. This makes it easy to formulate flavored or natural hemp-taste products.
- Consistent dosing: Being a refined, standardized oil, MCT provides a consistent base for precise CBD concentrations batch to batch.
Potential concerns: Most people tolerate MCT oil well, but high doses can cause digestive upset, loose stools, or nausea in some individuals — particularly those unaccustomed to high-fat intake. Starting with lower doses mitigates this. People with coconut or palm allergies (uncommon) should check the MCT source.
Best for: General-purpose CBD oils, people who want neutral flavor, those prioritizing shelf stability and absorption.
Hemp Seed Oil
What it is: Cold-pressed oil from hemp seeds. Note: Hemp seeds contain no cannabinoids — this oil has no CBD unless hemp extract is separately added. When used as a carrier, it's paired with hemp extract; the hemp seed oil itself contributes nutritional value, not CBD.
For a closer look at available formats and ingredients, browse Pure Craft broad-spectrum CBD oil.
Nutritional profile: Hemp seed oil has a well-regarded nutritional profile:
- 3:1 ratio of omega-6 (linoleic acid) to omega-3 (alpha-linolenic acid) — considered optimal for human health, matching recommended intake ratios
- Gamma-linolenic acid (GLA), an omega-6 with anti-inflammatory properties
- Stearidonic acid (SDA), an omega-3 precursor to EPA and DHA
- Vitamin E (tocopherols) — natural antioxidants that also help preserve the oil
- Phytosterols with cholesterol-modulating properties
Limitations: Hemp seed oil is less stable than MCT, going rancid faster when exposed to heat and light. Products using it as a carrier benefit from refrigeration after opening. It also has a more pronounced "green" or nutty flavor that some find pleasant, others less so.
Best for: Users who want whole-food hemp oil nutrition alongside their CBD, or those who prefer a more natural, less-processed carrier.
Olive Oil
What it is: Cold-pressed oil from olives, primarily long-chain monounsaturated fatty acids (oleic acid, C18:1) with a complex phytochemical profile.
Why it's sometimes used: An early study by Zgair et al. (2016) found that oral lipid-based delivery of CBD in sesame oil or olive oil enhanced absorption compared to non-fat formulations. Olive oil also contains oleocanthal, a compound with COX-inhibitory anti-inflammatory properties similar to ibuprofen, adding potential complementary benefit.
Limitations: Distinct olive flavor (pleasant to some, not to all), lower stability than MCT, less efficient metabolic processing than MCTs for CBD delivery. Less commonly used commercially for these reasons.
To compare labeled CBD content and ingredients, see Pure Craft CBD oil product details.
Avocado Oil
High in monounsaturated fats (oleic acid, like olive oil), vitamin E, and plant sterols. Rich flavor but also higher in beneficial fat-soluble vitamins and antioxidants. Not common as a CBD carrier but used in some premium or specialty formulations. Most sensitive to heat damage; needs cool storage.
Sunflower or Safflower Oil
High-oleic versions of these oils (>70% oleic acid) are sometimes used as CBD carriers. More stable than regular sunflower or safflower oil, neutral flavor, less expensive than MCT. Not as metabolically efficient as MCT for CBD delivery but an acceptable excipient. May be used in products targeting people avoiding coconut-derived ingredients.
Nanoemulsion Systems
Nanoemulsion represents a fundamentally different approach rather than simply a different carrier oil. In nanoemulsion CBD products:
- The CBD and carrier oil are broken into nanoparticles (10–100nm) using mechanical processing
- Emulsifiers maintain particle size stability
- The nano-sized particles can absorb through multiple pathways (intestinal cells directly, lymphatics, oral mucosa) rather than relying solely on fat digestion
- Bioavailability increases from 13–19% (standard oil) to 50–80%
The ingredient list of a nanoemulsion product will typically include the carrier oil, the emulsifier (often polysorbate 80 or sunflower lecithin), and sometimes co-solvents or stabilizers used in the nano-formulation process. For more on how this affects your experience, see our guide to How to Take CBD Oil.
If you are exploring an oil format, review Pure Craft broad-spectrum CBD oil before choosing a product.
Common Additives: What They Are and Why They're There
Terpenes
Hemp-derived terpenes may be naturally present (retained from the original extract) or added back after processing. Botanical terpenes from non-hemp plants (derived from citrus, lavender, pine, etc.) may also be added. Both types can contribute to the entourage effect and flavor profile.
Key terpenes to look for:
- Beta-caryophyllene: The only terpene that directly activates CB2 receptors; strong anti-inflammatory evidence; common in hemp, black pepper, cloves
- Myrcene: Sedating, muscle-relaxing properties; enhances cell membrane permeability potentially improving absorption of other compounds; common in hops and mangoes
- Linalool: Anxiolytic and calming; reduces cortisol; primary terpene in lavender; also found in hemp
- Limonene: Mood-elevating, anti-anxiety; enhances absorption of other compounds through skin and mucous membranes; citrus rind terpene also found in many hemp strains
- Pinene: Alerting effect counteracting some sedating terpenes; anti-inflammatory; opens bronchial passages; pine forests and hemp both contain significant pinene
- Ocimene: Antiviral, antifungal properties; sweet, floral aroma
- Terpinolene: Mildly sedating, antioxidant properties; found in some hemp strains
Safety consideration: Pure terpenes are highly concentrated and should only be consumed in the diluted forms present in CBD products — never directly. At the concentrations used in CBD oils (typically 0.5–2%), food-grade terpenes are GRAS (Generally Recognized as Safe). Some people with chemical sensitivities may react to added terpene concentrates; if you suspect this, consider isolate-based products.
Natural Flavors
"Natural flavors" on an ingredient list means flavoring derived from natural sources (fruit, plants, spices, bark, etc.) rather than synthesized from petroleum. This definition comes from FDA regulations but is broadly interpreted — "natural flavor" from a botanical source can be a highly processed extract of that source rather than the original food.
Why it's added: Hemp extract has a characteristic earthy, sometimes bitter flavor that many users find unpleasant, particularly for higher doses. Natural flavors — typically fruit flavors like mint, citrus, berry, or vanilla — make sublingual dosing more palatable.
What to check: If you have specific food allergies or sensitivities, "natural flavor" can be worth questioning, as its source isn't always specified. Most reputable manufacturers can tell you what their natural flavors are derived from. Flavors from animal sources (e.g., natural vanilla from beaver castoreum) are uncommon but technically possible under this label category — worth asking about for vegan consumers.
Emulsifiers
Emulsifiers keep oil and water from separating, which is essential for nanoemulsion formulations. Common emulsifiers in CBD products:
You can examine the serving information for Pure Craft CBD oil to understand how this format is labeled.
Polysorbate 80 (Tween 80): A synthetic emulsifier widely used in food, pharmaceuticals, and cosmetics. FDA GRAS status at approved concentrations. Enables water-soluble CBD formulations. Some research suggests high doses of polysorbate 80 may affect gut microbiome in animal models — amounts used in CBD products are far below doses studied, but people with gut sensitivities may want to look for alternatives.
Sunflower lecithin: A phospholipid emulsifier derived from sunflower seeds (also available as soy lecithin, though some consumers prefer sunflower to avoid soy). Forms liposomal structures that can encapsulate CBD. Generally well-tolerated, plant-derived, and considered a cleaner-label alternative to polysorbate 80. Also naturally present in eggs and soybeans.
Acacia gum (gum arabic): A natural emulsifier from acacia trees used in some water-soluble CBD formulations. Also functions as a prebiotic fiber. Very well-tolerated with long history of food use.
Preservatives
Pure CBD oils (extract in carrier oil) generally don't need preservatives — the carrier oil's natural or added antioxidants (vitamin E) provide sufficient stability. However, water-containing formulations (water-soluble CBD, some nanoemulsions) need preservation to prevent microbial growth.
Vitamin E (tocopherols/tocopherol acetate): Natural antioxidant that prevents oxidative rancidity in oils. Added to some products to extend shelf life or provide supplemental vitamin E. Generally considered safe and beneficial.
For a closer look at available formats and ingredients, browse Pure Craft broad-spectrum CBD oil.
Sodium benzoate: A common preservative in water-based products. Generally recognized as safe at approved levels. Note: Sodium benzoate can convert to benzene in the presence of vitamin C (ascorbic acid) — not a concern for CBD oils that typically don't contain both.
Potassium sorbate: Another commonly used preservative in food products. Well-studied safety profile at approved levels.
Sweeteners
Sublingual CBD oils sometimes include sweeteners to offset hemp's bitterness:
Stevia leaf extract: A plant-derived, zero-calorie sweetener from the Stevia rebaudiana plant. Popular in "natural" formulated products. Some people have a bitter aftertaste sensitivity to stevia. Generally considered safe and well-studied.
Monk fruit extract (Luo Han Guo): Zero-calorie sweetener from a small melon. Very sweet with no known significant adverse effects. Increasingly used in premium CBD products targeting health-conscious consumers.
Cane sugar or honey: Used in some products where calorie-free is not the priority. Adds minimal caloric impact at the small amounts used in tinctures.
To compare labeled CBD content and ingredients, see Pure Craft CBD oil product details.
Sugar alcohols (xylitol, sorbitol, erythritol): Reduced-calorie sweeteners. Generally well-tolerated in small amounts; xylitol is toxic to dogs, worth noting if you have pets who might access products.
Additional Cannabinoids
Some products add specific minor cannabinoids to achieve targeted effects:
CBN (Cannabinol): Added to sleep products for its sedating properties. PureCraft's Nano CBD + CBN + D9 Gummies with Melatonin use this combination. CBN itself forms naturally when THC oxidizes over time — commercially it's produced by converting CBD through specific processes.
CBG (Cannabigerol): Added to products targeting energy, focus, or neuroprotection. Preliminary evidence suggests anti-bacterial properties, neuroprotective effects, and potential appetite stimulation. Well-tolerated in preliminary studies.
Delta-9 THC (in hemp-legal products): Some products add delta-9 THC derived from hemp at concentrations complying with the 0.3% by weight federal limit, effectively using the "total product weight" compliance approach to achieve meaningful THC content in larger products like gummies. These are legal in most states but may cause psychoactive effects and drug testing positives.
Delta-8 THC: A semi-synthetic cannabinoid typically produced by chemically converting CBD. Found in many states as a legal alternative to delta-9 THC. Has psychoactive effects weaker than delta-9 but stronger than CBD. Regulatory status varies by state; some states have explicitly banned it. Not the same as naturally occurring delta-8 in trace amounts in hemp.
Melatonin
Melatonin is a natural hormone (also available as a supplement) that regulates circadian rhythm and sleep onset. Added to CBD sleep products to complement CBD's effects. Typical doses in CBD sleep products range from 0.5mg to 5mg per serving.
Lower doses of melatonin (0.5–1mg) are increasingly supported by research as more effective for circadian rhythm adjustment with fewer morning grogginess side effects than higher doses (5–10mg). Some products overdose melatonin in the belief that more is better — check the amount on the label.
Melatonin is generally safe for short-term use. Long-term supplementation questions remain — some researchers are concerned about potential effects on the body's endogenous melatonin production with extended use. For occasional sleep support, it's well-established; for chronic sleep issues, addressing underlying causes is preferable to long-term melatonin supplementation.
Herbal Additions
Some CBD oils add adaptogens, herbs, or botanical extracts:
Ashwagandha (Withania somnifera): An adaptogen with clinical evidence for cortisol reduction, anxiety relief, and sleep improvement — makes mechanistic sense paired with CBD for stress applications. Reviewed studies show consistent anxiety and stress reduction effects.
If you are exploring an oil format, review Pure Craft broad-spectrum CBD oil before choosing a product.
Turmeric/curcumin: Strong anti-inflammatory evidence for curcumin. Poor bioavailability on its own (improved with piperine/black pepper extract). Paired with CBD in some inflammation-focused products. Note: turmeric can interact with blood thinners.
Elderberry (Sambucus nigra): Used in immune-support CBD products. PureCraft offers an Elderberry-Infused CBD Gummies product combining CBD with elderberry's anthocyanin content.
Valerian root: Traditional sleep aid with GABA-ergic activity — complementary to CBD's GABA modulation for sleep applications.
Chamomile extract: Contains apigenin, a flavonoid with anxiolytic and sleep-promoting effects. Synergistic with CBD for relaxation applications.
Ingredients to Question or Avoid
Not everything on a CBD ingredient list is benign. Here are specific items worth scrutinizing:
Propylene Glycol (PG)
A synthetic solvent used in some CBD vape products and occasionally oral tinctures as a carrier or solubilizer. Oral PG at low levels is GRAS. However, when heated and inhaled (as in vaping), PG may convert to propylene oxide, a potential carcinogen. Avoid in any inhalation product. For oral tinctures, not a significant safety concern at typical amounts, but natural alternatives exist.
Artificial Colors and Dyes
CBD gummies sometimes include synthetic food dyes (Red 40, Yellow 5/6, Blue 1, etc.). These have GRAS status but are associated with hyperactivity in some children in some studies and are banned in several countries requiring warning labels (EU). Natural colorants (beet juice, spirulina, turmeric, fruit concentrates) are preferable, particularly in children's products.
High Fructose Corn Syrup (HFCS)
Some budget CBD gummies use HFCS as a sweetener. While not uniquely dangerous at low amounts, HFCS at the levels used in candy-like gummies adds significant sugar with metabolic implications. Look for products using cane sugar, fruit juice concentrate, or sugar alternatives if glycemic impact concerns you.
You can examine the serving information for Pure Craft CBD oil to understand how this format is labeled.
Unknown "Natural Flavors" Without Transparency
If a manufacturer can't or won't tell you what their natural flavors are derived from, that lack of transparency is itself a red flag — particularly for those with food allergies, vegan/vegetarian requirements, or religious dietary restrictions.
Vitamin E Acetate (in Vape Products)
Vitamin E acetate (tocopherol acetate) is safe as a supplement and skin-care ingredient, but was identified as the primary cause of EVALI (e-cigarette/vaping product use-associated lung injury) in the 2019 outbreak when used as a vape carrier or thickener. Should not appear in any inhalation product. Its presence in oral CBD oils is not a concern.
Reading CBD Labels: A Practical Checklist
| What to Look For | What It Tells You | Red Flag Version |
|---|---|---|
| Active ingredient | "Hemp extract" or "CBD isolate" explicitly | "Hemp oil" or "hemp seed oil" only |
| CBD content | Milligrams per serving AND per bottle | No mg listed or only vague "hemp blend" |
| Carrier oil | Named specifically (MCT, hemp seed oil) | "Proprietary blend" without disclosure |
| Third-party testing | QR code to COA or link to lab results | No COA or only internal testing claimed |
| Additives | Natural, purposeful ingredients with clear function | Artificial dyes, HFCS, undisclosed sources |
| Allergen info | Clear disclosure of top 9 allergens | No allergen information |
| Expiration date | Based on stability testing | Missing or clearly generic estimate |
PureCraft's Ingredient Approach
PureCraft's products are built around broad spectrum hemp extract in nanoemulsion form — prioritizing both the entourage effect and superior bioavailability. The product line uses MCT oil as the primary carrier for stability and absorption, with targeted functional additions:
- The Nano CBD Broad Spectrum Oil keeps the formulation clean: broad spectrum hemp extract, MCT oil, and natural flavoring
- The Nano CBD Softgels use a water-soluble nanoemulsion formulation with food-grade emulsifiers for enhanced absorption in capsule form
- The Sleep Gummies add CBN and melatonin for comprehensive sleep support
- The Elderberry Gummies pair CBD with elderberry for immune-wellness applications
- The Muscle and Joint Cream delivers nanoemulsion CBD topically with anti-inflammatory-supporting botanical ingredients
All products are tested by independent third-party labs for potency, contaminants, and purity.
Frequently Asked Questions
Is "hemp oil" the same as CBD oil?
No, and this distinction matters for consumers. "Hemp oil" most commonly refers to hemp seed oil — a nutritious oil pressed from hemp seeds that contains no CBD or other cannabinoids. It's a healthy cooking and supplement oil, but it won't produce CBD effects. True CBD oil is made from hemp extract (derived from hemp flowers and leaves, which do contain cannabinoids) dissolved in a carrier oil. A product labeled only as "hemp oil" without a stated milligram amount of CBD or cannabinoids listed is very likely hemp seed oil. Always look for explicit CBD content in milligrams on the label.
For a closer look at available formats and ingredients, browse Pure Craft broad-spectrum CBD oil.
Does it matter which carrier oil is used for absorption?
Yes, though the differences between standard carrier oils (MCT, hemp seed, olive) are modest compared to the difference between any standard oil and nanoemulsion. Among standard carriers, MCT oil may provide marginally better absorption due to its metabolic pathway (absorbed directly in portal circulation rather than lymphatically). For a meaningful bioavailability upgrade, nanoemulsion — which increases absorption from ~13–19% to 50–80% — is the most impactful change you can make. The carrier oil matters; the nano-formulation method matters more.
Are artificial flavors in CBD oil safe?
Artificial flavors (synthesized flavor compounds) used in food products have GRAS status from the FDA and are used at concentrations considered safe in the amounts consumed through normal product use. There is no specific evidence that artificial flavors in CBD products create unique safety concerns. However, for consumers prioritizing clean labels, natural flavors (derived from natural sources) or unflavored products avoid this question entirely. The primary concern with flavoring ingredients is specific compound sensitivities or allergies rather than any systemic toxicity from the flavors themselves.
I see "terpenes added" on a label. Is that a red flag?
Not necessarily. Adding hemp-derived terpenes back after distillation is a common and legitimate practice — the terpenes were removed during processing and then re-incorporated to restore the product's profile. This can produce an excellent broad spectrum product. What matters is the source and quality of those terpenes (hemp-derived vs. botanical/synthetic), the accuracy of the terpene profile (verify with COA), and whether the terpene concentrations are appropriate. A product with re-added terpenes that shows a verified, robust terpene panel on its COA is fine. "Terpenes added" with no verification of what was actually added, or with no COA terpene panel, is less reassuring.
What should vegans watch out for in CBD products?
Most CBD oils and tinctures are vegan-friendly (plant-derived hemp extract in plant-derived carrier oil). Potential non-vegan issues include: gelatin-based softgels (most standard capsules use gelatin capsule shells — look for "vegan softgels" or "plant-based capsules"); gummies using gelatin as the gummy base; natural flavors derived from animal sources (rare but possible, including casein from milk or castoreum); honey as a sweetener; and beeswax in topical products. PureCraft's gummy products are specifically labeled vegan. For tinctures and softgels, check for "vegan," "plant-based capsule," or contact the manufacturer about specific gelatin-free options.
Is polysorbate 80 safe in CBD nanoemulsion products?
Polysorbate 80 has FDA GRAS status and is widely used in pharmaceuticals, vaccines, and food products. At the concentrations used in CBD nanoemulsion formulations, no significant safety concerns are established in humans. Animal studies at much higher doses have shown gut microbiome disruption, but these doses are orders of magnitude higher than what's present in CBD products. For most people, polysorbate 80 in nanoemulsion CBD is not a concern. People with existing inflammatory bowel conditions or significant gut dysbiosis who are concerned may prefer products using sunflower lecithin as the emulsifier instead.
To compare labeled CBD content and ingredients, see Pure Craft CBD oil product details.
Can I take CBD oil if I have a coconut allergy?
MCT oil is derived from coconut oil (most commonly) or palm kernel oil, so people with coconut allergies should be cautious. True coconut allergies are actually relatively rare; most adverse coconut reactions are intolerances or sensitizations rather than IgE-mediated allergies. However, anyone with a known coconut allergy should confirm the carrier oil source before using an MCT-based CBD product, or choose products using hemp seed oil, olive oil, or other non-coconut carriers instead. Contact the manufacturer directly if uncertain — carrier oil sources should be disclosed.
Why do some CBD oils have more ingredients than others?
A longer ingredient list isn't inherently better or worse — it depends on what's there and why. A minimal-ingredient CBD oil (hemp extract, MCT oil, natural flavor) keeps things simple and is easy to trace if reactions occur. A more complex product adding CBN for sleep, melatonin, linalool terpenes, and chamomile has intentional stacking of synergistic compounds — potentially more effective for its specific purpose but harder to isolate cause and effect. Generally, each additional ingredient should have a clear functional rationale. Complexity for marketing purposes — adding small amounts of trendy ingredients that have no meaningful impact at the concentrations used — is less valuable. Evaluate each ingredient individually rather than judging by list length.
What's the difference between hemp seed oil on the ingredient list vs. as the carrier?
Hemp seed oil can appear on an ingredient list in two contexts: as the carrier oil (in which case it's the base medium and listed first or second, indicating the product uses hemp seed oil as its delivery vehicle for CBD extract), or as a minor additive in an MCT-based product (added for its omega fatty acid and nutritional profile alongside the primary MCT carrier). The difference is the ingredient order — carriers appear first as they make up the majority of the product volume. In either case, hemp seed oil itself contains no CBD; the cannabinoid content comes from the separately listed hemp extract.
Are there any CBD oil ingredients that interact with medications?
CBD itself is the primary interaction concern — it inhibits CYP450 enzymes (particularly CYP3A4 and CYP2C9) involved in metabolizing many medications, potentially increasing drug levels. This is addressed in our CBD Oil Side Effects guide. Beyond CBD, other ingredients can also interact: turmeric/curcumin affects blood thinners; valerian root has additive effects with sedatives and CNS depressants; ashwagandha may affect thyroid hormones; elderberry may enhance or complicate immunosuppressant effects. If you take prescription medications, review the complete ingredient list with your pharmacist for any supplement that contains multiple active botanical ingredients.
Related Articles
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- Full-Spectrum vs Broad-Spectrum vs CBD Isolate: The Complete Guide | PureCraft CBD
- From Seed To Sale: How CBD Oil Is Made
- Can You Take CBD Every Day for Anxiety?
- What Concentration Of CBD Tincture Do You Need?
- How to Read a CBD Certificate of Analysis (COA)
- Nanoemulsion CBD: How Water-Soluble Technology Works
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