Collagen Peptide Serum safety rating

Collagen Peptide Serum safety rating | Greenlens

Raters split

Ingredient safety

A 69-point gap between the two loudest voices.

25Greenlens Precautionary ScreenIndependent

94Greenlens Tolerance ScreenIndependent

050100

See why, ingredient by ingredient

All 3193 cleaner options, safest first We show the best 12, including the strongest on each axis.

Every rater, every axis

Ingredient safety

69 pts apart

A government authority. Auto-linked to this product, not yet human-reviewed. Checked this week. about this rater →
Independent — not funded by the brands it rates. Auto-linked to this product, not yet human-reviewed. Checked this week. about this rater →
Independent — not funded by the brands it rates. Auto-linked to this product, not yet human-reviewed. Checked this week. about this rater →
Independent — not funded by the brands it rates. Auto-linked to this product, not yet human-reviewed. Checked this week. about this rater →
A government authority. Auto-linked to this product, not yet human-reviewed. Checked this week. about this rater →

Also screened, nothing found: ECHA SVHC Candidate List · IARC Monographs · ANSES Endocrine Disruptors · EU Harmonised Classification (CLP Annex VI) · US NTP Report on Carcinogens

Environmental

Also screened, nothing found: EU Microplastics Restriction

Labor

Run by a nonprofit. Auto-linked to this product, not yet human-reviewed. This rates Le Mieux as a company and applies to everything they make, not this product alone. Checked this week. about this rater →

Coverage & match quality

6 ratings · 2 of 4 axes

Some ratings rest on an automatic match that has not been human-reviewed.
Fewer raters reach smaller-brand products, so a missing rating is not a clean bill of health, only a gap.

Weighted by what you care about

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composite recomputes live

Ingredient safety1.0×

Environmentalno rating

No rater covers this axis for this product, so its weight can't move the score.

Labor1.0×

Packagingno rating

No rater covers this axis for this product, so its weight can't move the score.

0 means ignored. Higher = more weight in your composite.

Ingredients, decoded

Data availability

Robust49 of 50 characterized

Our sources have reference data on 49 of 50 listed ingredients; 1 is uncharacterized in our data — a gap, not a clean bill.

Worth a look (1)

Retinyl Palmitate

Where this came from

Cruelty-free status recorded from crueltyfree.peta.org ↗

Researched facts on Greenlens always carry the page that stated them — nothing is inferred from a model's memory.

What these ingredient tags mean (3)

These describe what an ingredient is, not whether it is a problem. The stance marks above are the ratings; these are not.

retinoidRetinyl Palmitate
- Retinyl Palmitate: A gentler vitamin A ester that the skin converts to retinol. SCCS Opinion on Vitamin A (Retinol, Retinyl Acetate, Retinyl Palmitate), SCCS/1576/16, which assesses retinyl palmitate by name; EU Regulation (EC) 1223/2009 Annex III entry 376 covers it in the same group as retinol.
humectantSodium Hyaluronate, Sodium PCA, Urea
- Sodium Hyaluronate: A humectant that holds a large amount of water at the skin surface. Chylińska N, Maciejczyk M, "Hyaluronic Acid and Skin: Its Role in Aging and Wound-Healing Processes", Gels 2025;11(4):281, DOI 10.3390/gels11040281, PMID 40277717, open access: hyaluronic acid's "high osmotic activity and anionic structure enable it to bind large amounts of water", and "sodium and potassium hyaluronate are widely used in moisturizing products". The same review notes that high-molecular-weight hyaluronic acid does not penetrate the deeper layers.
- Sodium PCA: The salt of PCA, one of the water-holding substances the outer layer of skin makes for itself. Dörner C, Steinbinder J, Sachslehner AP, Sukseree S, Eckhart L, "Amino Acid Metabolism of the Skin: Control by Specific Enzymes and Contribution to Protective Functions", Metabolites 2025;15(9):601, DOI 10.3390/metabo15090601, open access, section "Glutamine Is Converted to Pyrrolidone Carboxylic Acid, a Component of the NMF": "pyrrolidone carboxylic acid (PCA), also known as pyroglutamic acid or 5-oxoproline, accumulates in the stratum corneum."
- Urea: A humectant the skin already makes; at higher levels it also softens thickened skin. StatPearls, "Moisturizers", NCBI Bookshelf NBK545171, updated 12 February 2024: "Urea is a component of NMF. The addition of urea to moisturizers helps with the absorption of water into the stratum corneum." The FDA label for prescription-strength urea calls it keratolytic and states that its mechanism of action is not yet known.
barrier lipidCeramide NP
- Ceramide NP: One of the lipid families the skin barrier is actually built from. Feingold KR and Elias PM, "The role of ceramides in the disruption of the cutaneous permeability barrier, a common manifestation of skin disorders", J Lipid Res 2024;65(8):100593, DOI 10.1016/j.jlr.2024.100593, open access: the barrier lipid matrix "by weight is approximately 50% ceramides, 25% cholesterol, and 15% free fatty acids".