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Cosmetic Peptide Ingredients for Skincare Formulators

Defined cosmetic peptide sequences, each with its own INCI — Acetyl Hexapeptide-8, Palmitoyl Pentapeptide-4, Copper Tripeptide-1, Acetyl Tetrapeptide-5 and more — sold two ways: neat powders in 1 g to 50 g packs, and ready solutions from 0.33 oz (10 mL) to 1 gallon. Every card lists the INCI and the CAS number, or says Mixture or N/A where none is verified.

  • Powders 1 g–50 g
  • Solutions 10 mL–1 gal
  • INCI + CAS on every card
  • Ships from Florida
Peptide PowdersPeptide Solutions

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Peptide Powders

Neat sequences you weigh and dissolve — Acetyl Hexapeptide-8 Powder, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Palmitoyl Pentapeptide-4, Copper Tripeptide-1, EGF. Sold in 1 g, 5 g, 10 g and 50 g.

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Peptide Solutions

Pre-dissolved peptides you add in cool-down — Acetyl Hexapeptide-8, Palmitoyl Tripeptide-1 + Palmitoyl Tetrapeptide-7, GHK-Cu, Acetyl Tetrapeptide-5, Acetyl Tetrapeptide-3 + Red Clover Extract. Sold from a 0.33 oz (10 mL) sample to 1 gallon.

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All Peptide Ingredients

Prices are for the smallest pack: 10 mL for solutions, 1 g for powders.

Showing 60 of 219 products

Formulation guides in this category

INCI, use level, pH, solubility and a sample recipe are written out for: Copper PCA, Maxi lip, Milk Peptide Complex Liposomes.

What is in this aisle

Only named sequences with their own INCI. Mixed protein fragments from oat, wheat, soy, keratin and collagen are in Hydrolyzed Proteins; plant and ferment vesicle fractions are in Exosome Ingredients.

Popular peptides by trade name and INCI

Expression-line peptides, by trade name and INCI: Acetyl Hexapeptide-8 Solution; Acetyl Hexapeptide-8 Solution; Acetyl Hexapeptide-8 Powder; Acetyl Octapeptide-3 Solution; Acetyl Octapeptide-3 Solution (Acetyl Octapeptide-3 Solution Type); Acetyl Octapeptide-3 Solution Peptide Solution C; Dipeptide Diaminobutyroyl Benzylamide Diacetate Powder (Dipeptide Diaminobutyroyl Benzylamide Diacetate); Pentapeptide-18 Solution.

Matrikines and firming peptides: Palmitoyl Tripeptide-1 + Palmitoyl Tetrapeptide-7 Liquid (Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7); Palmitoyl Pentapeptide-4 Powder; Palmitoyl Pentapeptide-4 Solution (Palmitoyl Pentapeptide-4, Pal-KTTKS); Palmitoyl Tripeptide-1 Solution (Pal-GHK); Acetyl Tetrapeptide-2 Solution; Idealift (Acetyl Dipeptide-1 Cetyl Ester).

Copper peptides (Copper Tripeptide-1): Copper Peptide GHK-Cu Solution (Copper Tripeptide-1); GHK-Cu Powder (Copper Tripeptide-1); GHK-Cu Copper Peptide Solution (Copper Tripeptide-1).

Eye contour peptides: Acetyl Tetrapeptide-5 Solution; Acetyl Tetrapeptide-5 Powder.

Hair, scalp and lash actives: Acetyl Tetrapeptide-3 + Red Clover Extract Hair Complex (Acetyl Tetrapeptide-3, Red Clover Flower Extract); Myristoyl Pentapeptide-17 Solution (Lash Peptide); Biotinoyl Tripeptide-1 Solution (Biotinyl-GHK); Baicapil (Scutellaria Baicalensis Root, Soy and Wheat Germ Extracts); Keramare (Cystoseira Compressa Extract).

Glow and even-tone actives: Acetyl Hexapeptide-1 Powder (Melitane Type); White Peony Phytessence (Paeonia Lactiflora Root Extract).

Find a peptide by goal

GoalSolutionsPowders
Expression lines14 solutionsExpression-line peptide powders (6)
Collagen and firmness19 solutionsCollagen and firming peptide powders (12)
Copper peptides3 solutionsCopper, eye-contour and lash peptide powders (5)
Eye contour7 solutionsCopper, eye-contour and lash peptide powders (5)
Hair, scalp and lashes15 solutionsCopper, eye-contour and lash peptide powders (5)
Soothing and barrier5 solutionsSoothing and antioxidant peptide powders (8)
Tone and growth-factor-like12 solutionsGrowth-factor-like, tone and body peptide powders (14)
Body contour and specialty7 solutionsGrowth-factor-like, tone and body peptide powders (14)

Cosmetic peptides FAQ

How is a peptide different from a hydrolyzed protein?

A peptide here is one named sequence with its own INCI, such as Acetyl Hexapeptide-8. A hydrolyzed protein is a mixture of fragments cut from oat, wheat, soy, keratin or collagen. Hydrolysates are listed separately in Hydrolyzed Proteins.

How is a peptide different from an exosome ingredient?

A peptide is a short amino-acid chain. An exosome ingredient is an extracellular-vesicle fraction from a plant or ferment. They are different ingredient classes and are listed in separate aisles.

What can I claim on a finished peptide product?

Cosmetic claims about appearance, feel and hydration — for example the look of lines, firmness or puffiness. In the US, performance claims beyond appearance change how the product is regulated.

How do I get a CoA?

Email sales@ingredient-os.com with the SKU and we will send the Certificate of Analysis for the lot.

What does US shipping cost?

Free on orders of $50 or more before tax. Under that, $5.95 to Florida addresses and $6.95 to other states. Orders usually ship in 1–2 business days. Checkout is US-only; international orders go through the quote form.