Collagen Peptides

Estimated Market Price

$49.99 – $64.99

Based on verified supplier pricing for research-grade compounds

Bioactive hydrolyzed collagen for skin, joints, and hair. Stimulates endogenous collagen synthesis. Clinically proven benefits for elasticity and hydration.

How it works

Broken-down collagen fragments survive digestion and enter the bloodstream, where they signal fibroblasts and cartilage cells to produce fresh collagen. Supports skin elasticity, joint health, and gut lining repair.

Hair Growth

Skin & Beauty

What to Expect

Week 1–2 Bioactive peptides absorbed; fibroblast stimulation beginning. Nails may feel slightly stronger; gut comfort improving.

Week 3–4 Skin hydration and elasticity improving; joint comfort increasing. Skin more hydrated; joints feeling smoother.

Week 5–8 Collagen synthesis elevated; visible skin and nail improvements. Hair and nails growing faster; skin visibly better.

Week 9–12+ Peak structural benefits; continued use sustains joint and skin health. Joints, skin, hair, and nails all noticeably improved.

Verified Suppliers

For research purposes only. These suppliers have been independently verified by PepSpace. We do not process sales directly.

PepSpace is not affiliated with any listed supplier

LarnaLabs Verified Supplier · larnalabs.com

PepSpace Verified Supplier · pepspace.io

BioSynth Verified Custom Batch Supplier · biosynth.com

Peptide Sciences Unavailable · peptidesciences.com

Protocol & Dosage

Typical Dosage 5–15 g oral daily

Administration Oral

Schedule Once daily, mixed into liquid; AM or with meals

Protocol Duration 8–12+ weeks (ongoing)

Half-Life Oral bioavailability - peptides absorbed within 1-2 hours

Side Effects & Safety

Tolerability Profile Favorable

Very well tolerated; side effects are rare and mild

Common Side Effects

Mild bloatingsome users
Feeling of fullnesssome users

Less Common

Unpleasant aftertaste (especially marine)occasional
Mild GI discomfortoccasional
Headacheoccasional

Rare / Serious

Allergic reaction (source-dependent)rare
Skin breakouts during adjustmentrare

Discontinue If

Severe allergic reaction (rash, swelling, breathing difficulty)
Persistent digestive distress or diarrhea
Signs of calcium excess (nausea, confusion, kidney stones)

Contraindications

Known allergy to collagen source (bovine, marine, or porcine)
Severe kidney disease (protein load concern)
Pregnancy complications (consult physician)

Data note: Long history of safe supplementation. Multiple human trials confirm safety at 2.5-15g/day with minimal adverse events.

Always consult a qualified healthcare professional before use. This information is for research reference only and does not constitute medical advice.

Ask about Collagen Peptides

How to Apply

Gather

Peptide vial, BAC water, alcohol swabs, insulin syringe

Sanitize

Wipe tops of both vials with alcohol swabs

Draw

Pull 1–2 mL of BAC water into syringe

Add Water

Release water slowly along vial wall, not directly on powder

Swirl

Roll between palms until dissolved. Never shake.

Store

Refrigerate 2–8°C, use within 30 days

Frequently Asked Questions

Yes. Bacteriostatic water (BAC water) is required to reconstitute lyophilized (freeze-dried) peptides. It contains 0.9% benzyl alcohol which prevents bacterial growth, keeping your reconstituted peptide safe for multiple uses over up to 30 days.

Unreconstituted: store at -20°C (freezer) for long-term, or 2–8°C (fridge) for short-term. After reconstitution: always refrigerate at 2–8°C and use within 30 days. Keep away from direct sunlight.

Results vary by individual and protocol. In research settings, measurable effects are typically observed within 1–4 weeks depending on the specific peptide, dosage, and application. Consult a qualified professional for guidance.

Verified suppliers typically include a full third-party COA verifying purity (99%+), identity, and sterility. We recommend only sourcing from vendors that provide batch-specific testing data.

We list verified suppliers above that have been independently reviewed for product quality, testing transparency, and shipping reliability. Always verify COA data before sourcing.

Compound Profile

Scientific data & classification for Collagen Peptides

Also Known As Collagen Peptides, Hydrolyzed Collagen, Collagen Hydrolysate

Classification Peptide Mixture · Structural Protein Supplement

Sequence Mixture of peptides (Gly-Pro-Hyp repeats dominant)

Molecular Formula Variable mixture (2-5 kDa fragments)

Molecular Weight 2,000-5,000 Da (average fragment)

CAS Number 92113-31-0

Half-Life Oral bioavailability - peptides absorbed within 1-2 hours

Origin Enzymatic hydrolysis of animal collagen (bovine, marine, or porcine)

Administration Oral

Status Commercially available - dietary supplement (GRAS)

Mechanism of Action Broken-down collagen fragments survive digestion and enter the bloodstream, where they signal fibroblasts and cartilage cells to produce fresh collagen. Supports skin elasticity, joint health, and gut lining repair.

Research Overview Collagen peptides, also known as hydrolyzed collagen or collagen hydrolysate, are a heterogeneous mixture of peptide fragments produced by the controlled enzymatic degradation of native collagen proteins, which constitute approximately 30% of the total protein mass in the human body and provide structural integrity to skin, bones, tendons, cartilage, blood vessels, and the gastrointestinal lining. The manufacturing process typically involves extraction of collagen from bovine hides, porcine skin, fish scales, or chicken cartilage, followed by enzymatic hydrolysis using proteases (most commonly from bacterial, fungal, or animal sources) that cleave the large collagen triple helix (~300 kDa) into smaller peptide fragments ranging from 2 to 5 kDa. The resulting peptide mixture is rich in the amino acids glycine (~33%), proline (~12%), and hydroxyproline (~12%) that are characteristic of collagen's unique Gly-X-Y triple-helical repeating structure, where X is frequently proline and Y is frequently hydroxyproline. A critical question in collagen peptide research has been whether orally ingested peptides survive gastrointestinal digestion and reach target tissues in bioactive form. Pharmacokinetic studies using radiolabeled and mass spectrometry-traced collagen peptides have confirmed that specific di- and tripeptides - most notably prolyl-hydroxyproline (Pro-Hyp) and hydroxyprolyl-glycine (Hyp-Gly) - resist further digestion by intestinal peptidases, are absorbed intact across the intestinal epithelium via peptide transporters (PepT1), appear in the bloodstream within 30 minutes of oral ingestion, and accumulate in skin and cartilage tissue. These collagen-derived peptides function as matrikines - fragments of extracellular matrix proteins that act as signaling molecules - stimulating fibroblasts and chondrocytes to increase the production of new collagen, elastin, and proteoglycans. A substantial body of randomized controlled clinical trial evidence supports the efficacy of collagen peptide supplementation - a 2019 meta-analysis of 11 trials involving 805 subjects concluded that collagen supplementation significantly improved skin hydration, elasticity, and wrinkle depth compared to placebo, while orthopedic studies have demonstrated improvements in joint pain, function, and cartilage markers in subjects with osteoarthritis.

Citations

Published findings on Collagen Peptides from peer-reviewed journals.

Oral supplementation of specific collagen peptides has beneficial effects on human skin physiology: a double-blind, placebo-controlled study

Proksch E, et al. • 2014 PubMed

Collagen supplementation for skin health: A mechanistic systematic review

Choi FD, et al. • 2019 PubMed

Daily oral supplementation with collagen peptides combined with vitamins improves skin elasticity and joint wellbeing

Genovese L, et al. • 2017 PubMed