Tripeptide-29

Published · Researched 2026-09-21

UNVALIDATED — included for comparison, low community signal. No meaningful community discussion found for this ingredient on any social platform during 2026-09-20 research. Everything below rests on supplier/formulator and brand sources, not community evidence.

Overview

• Type: Synthetic matrikine tripeptide, cosmetic ingredient (NOT a drug, NOT a research-chemical injectable).
• INCI name: TRIPEPTIDE-29
• Identity: H-Gly-Pro-Hyp-OH — glycine, proline, and hydroxyproline; a fundamental collagen-derived sequence.
• Trade name: AC Collagen Prepeptide PF (per cosmetic-ingredients reference ci.guide).
• Role in products: Collagen-support signal fragment used by formulators in anti-aging creams, eye gels, serums, and sheet masks. Retail visibility is niche: the best-known consumer brand using it is the UK's Q+A ("Pure Peptide" in their Seaweed Peptide Eye Gel and Peptide SPF50 Anti-Ageing Daily Sunscreen). The bulk of its market presence is B2B — raw-material suppliers selling to DIY formulators (e.g., Lotioncrafter "Tripeptide-29 Solution").
• 2026 context: Ingredient remains in the "formulator catalog" tier — present on supplier price lists and in a handful of retail formulas, but absent from the influencer/biohacker discourse that surrounds peptides like GHK-Cu or the Matrixyl family.

Social standing

• Platform pulse: Essentially silent. A direct Threads API search for "Tripeptide-29" (2026-09-20) returned only 2 results, both irrelevant (Indonesian collagen-drink marketing posts mentioning "tripeptide" generically). Two separate social.search sessions for Tripeptide-29 failed on subprocess timeouts (infrastructure, not evidence of absence — but the direct Threads API search is the authoritative signal). Web search surfaced zero Reddit threads, zero reviews, zero debates about the ingredient itself.
• Facebook Groups: A public-groups search for peptide-skincare communities found relevant groups (e.g., "Peptides Powered Plant-Based Anti-Aging Skincare"), but no Tripeptide-29-specific discussion surfaced in any of them. No group polls, files, or threads mention the ingredient.
• Instagram/Threads/Facebook: No owner photos, no reviews, no hot takes found. The only "social" trace is the generic noise above.
• Viral moments: None.
• Praise: None from the community (brand marketing claims exist on supplier pages only).
• Complaints: None — there is no community using it visibly enough to complain.

Social validation

Tier: UNVALIDATED (below Tier 3).

Minimum bar for credibility (≥2 independent social sources) is not met. This item is included for comparison per the project brief, not on evidence of community traction.

Key specs

Pricing

Observed 2026-09-20:

• Street price: No meaningful secondary market; retail Q+A products trade near MSRP at the brand site and third-party pharmacies.
• Marketplace used range: None observed — a Facebook Marketplace search for peptide serums returned no Tripeptide-29-relevant listings.
• Note: The Lotioncrafter product is a raw formulator solution ("Do not directly apply onto your skin"), not a finished cosmetic — priced for DIY/small-batch formulators.

What's included / what's needed

• Raw material route (Lotioncrafter): You get the peptide solution only. You need a complete formulation (emulsifier system, preservative, pH adjustment, packaging) and cosmetic-chemistry knowledge — it is explicitly not for direct skin application.
• Retail route (Q+A products): Ready-to-use finished cosmetics; nothing else needed.

Support reality

• No community-reported support experiences exist (no community).
• Q+A as a brand offers standard retail returns via its own store and pharmacy partners. No complaints surfaced in this research.
• Supplier (Lotioncrafter) carries the standard FDA non-evaluation disclaimer; no community data on their support quality.

Community verdict

There is no community verdict — Tripeptide-29 has no visible community. The evidence says it is a legitimate, INCI-listed collagen-fragment ingredient sold to formulators and quietly used in budget retail formulas, with supplier marketing making strong collagen-synthesis claims that no independent community or cited study currently backs. Buy it as a cheap formulator input or in a Q+A eye gel, not on the strength of any social proof.

Regulatory & safety status

• Not an FDA- or EMA-approved drug. It is a cosmetic ingredient, regulated (to the extent cosmetics are) as a cosmetic, not as a medicine.
• INCI-listed (TRIPEPTIDE-29); REACH compliance claimed by Lotioncrafter; Prop 65 statement provided by the same supplier.
• Not for injection, not for human systemic use. Nothing about this ingredient implies therapeutic approval. Supplier pages carry explicit "not evaluated by the FDA / not intended to diagnose, treat, cure or prevent disease" disclaimers.
• No community-reported adverse reactions found (consistent with zero community usage signal).

Images

Real product photos of the retail product containing the peptide (Q+A Seaweed Peptide Eye Gel 15 ml). All downloaded and JPEG-verified 2026-09-20. No AI-generated or synthetic images.

• img/tripeptide-29-hero.jpg — hero: Q+A tube + box front (retailer product shot)
• img/tripeptide-29-side.jpg — side/alternate angle: box + tube, vertical crop
• img/tripeptide-29-detail.jpg — detail: tube close-up
• img/tripeptide-29-top.jpg — alternate angle: small tube + box shot
• Missing views: rear, scale, real-owner-in-use, box/accessories detail — no owner photos or alternate product shots found; retailer catalog images were the only usable sources.

Not medical advice. This is a research summary about a cosmetic ingredient, not a recommendation to use it.

Named sources

• Creative Peptides — Sequence: Gly-Pro-Hyp (H-Gly-Pro-Hyp-OH)
• Lotioncrafter — Sequence: Gly-Pro-Hyp (H-Gly-Pro-Hyp-OH)
• ci.guide — Sequence: Gly-Pro-Hyp (H-Gly-Pro-Hyp-OH)

Source URLs were not recorded for these references.