Collagen (Hydrolyzed Collagen Peptides)
Of 1,628 on-market collagen (hydrolyzed collagen peptides) products in the January 2026 DSLD dump, the median declared dose is 1,800 mg, and 96.7% list Hydrolyzed Collagen Peptides (Type I/III) as the primary form.
Form share
Of 1,517 products with an identifiable primary form, here is the share held by each form of Collagen (Hydrolyzed Collagen Peptides) on the market today.
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| Form | Quality tier | n | Share |
|---|---|---|---|
| Hydrolyzed Collagen Peptides (Type I/III) | Tier 1 | 1,467 | 96.7% |
| Hydrolyzed Collagen Type II | Tier 2 | 49 | 3.2% |
| Gelatin / Hydrolyzed Gelatin | Unrated | 1 | 0.1% |
Forms we recognize but found no primary-form products for in this release: Undenatured Type II Collagen (UC-II).
Form share over time
Entry-year breakdown of the top forms, 2012–2025.
Dose distribution
Deciles of declared dose per serving (mg), among 1,164 products with a disclosed amount.
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- 34.1% of products fall below the fairy-dust threshold (500 mg, 20% of the studied low dose).
- 25.3% of products don't disclose an amount because Collagen (Hydrolyzed Collagen Peptides) is declared inside a proprietary blend.
Where does your dose rank?
Enter a per-serving dose (mg) to see exactly how it compares to the 1,164 on-market collagen (hydrolyzed collagen peptides) products with a disclosed amount. The chart above groups doses into deciles; this looks up the exact percentile for one number.
By dosage form
By target group
Top brands
Search interest over time
How often people search for collagen (hydrolyzed collagen peptides) on Google, US only, the last 5 years. This is public interest, not DSLD label data — a spike here doesn't necessarily line up with anything on this page, and Google's own index (100 = that term's peak popularity in the chosen window) is relative, not an absolute search-volume count.
Or see this search directly on trends.google.com.
Forms explained
Best-represented form across skin, joint and muscle RCTs; multiple double-blind placebo-controlled trials at 2.5-15 g/day (several industry-sponsored, e.g. Gelita/Collagen Research Institute co-authored) show measurable skin and muscle outcomes. Generic "Collagen"/"Total Collagen" label entries (no processing specified) default here as the most common commercial form, flagged for manual review rather than assumed with full certainty.
Source: Proksch E et al. 2014, Skin Pharmacol Physiol 27(1):47-55, PMID 23949208; Demir-Dora D et al. 2024, J Clin Med 13(18):5370, PMID 39336856; Zdzieblik D et al. 2015, Br J Nutr 114(8):1237-45, PMID 26353786
Fewer independent RCTs than generic Type I/III peptides; positive joint-comfort findings exist but the evidence base is thinner and often industry-sponsored.
Source: PMC8308696 (hydrolyzed chicken collagen type II RCT)
NOT simply another "form" of hydrolyzed collagen -- works via a distinct oral-tolerization immunological mechanism at a tiny ~40mg/day dose (vs multi-gram peptide doses), with its own multicenter RCT evidence including outperforming glucosamine+chondroitin on WOMAC score. Do not assume it is interchangeable with or additive to hydrolyzed collagen peptides.
Source: Lugo JP et al., PMC4731911; Crowley DC et al. 2009
Less hydrolyzed than collagen peptides with different solubility/bioavailability characteristics, but no rigorous head-to-head human RCT isolating gelatin vs hydrolyzed peptides at equal dose was found.
Source: none located (no head-to-head human RCT of gelatin vs hydrolyzed peptides found)
Reference values
- RDA (adult): not established — Not an essential nutrient (endogenously synthesized); no DRI exists.
- Tolerable Upper Intake Level (adult): not established — Not established. Trials using up to 15g/day of hydrolyzed collagen peptides have not reported serious adverse effects.
- Studied clinical dose range: 2500–15000 mg
- Low end: Proksch E et al. 2014, Skin Pharmacol Physiol 27(1):47-55, PMID 23949208 -- double-blind placebo-controlled study (n=69 women, 8 weeks); 2.5g and 5g/day dose-arms improved skin elasticity (authors include Gelita-affiliated researchers). Mid-range: CollaSel Pro RCT, Demir-Dora D et al. 2024, J Clin Med 13(18):5370, PMID 39336856 -- n=112 women, 10g/day x8wk improved skin elasticity, hydration and roughness vs placebo (manufacturer-branded product). High end: Zdzieblik D et al. 2015, Br J Nutr 114(8):1237-45, PMID 26353786 -- 15g/day x12wk combined with resistance training.
- Note: Undenatured Type II Collagen (UC-II) works via a distinct oral-tolerization mechanism at a much lower ~40mg/day dose and should NOT be treated as interchangeable/additive with hydrolyzed collagen peptides. Generic "Collagen"/"Total Collagen" label entries (no processing specified) default to the hydrolyzed Type I/III peptide bucket (by far the most common commercial form) but are flagged for manual review rather than assumed with certainty.