Kollaren

What Kollaren is and why chemists ask for it by name

Kollaren is a trade-name liquid grade of Tripeptide-1, the glycyl-histidyl-lysine sequence written GHK. Search for the free peptide and you will mostly find copper complexes, oil-based lip plumpers or powder sold from overseas warehouses. Kollaren fills the gap in between: the bare signal peptide, already in solution, shipped domestically with lot paperwork. It is a raw material for brands and contract labs building collagen-support skin care, not a consumer serum.

Identity and specification

Chemistry at a glance

Tripeptide-1 is a three-amino-acid sequence (Gly-His-Lys) with a molecular weight around 340 g/mol. Registries list CAS 49557-75-7 for the free base, and some suppliers quote 72957-37-0 for a salt form, so record whichever number your CoA prints. In the bottle it carries no metal, which keeps it colorless, unlike the blue to violet copper complex sold as GHK-Cu.

What the CoA tells you

Every lot ships with a certificate stating appearance, carrier and peptide content. Base label copy and percentage math on that document rather than on a generic figure. If your sourcing team searches by the plain chemical name instead of the brand, the same peptide type is also stocked as Tripeptide-1 Solution, a separate lot with its own documents.

How much to use

Peptide dosing is calculated on the active, not on the liquid. Published US data for comparable GHK solutions sit around 0.0015 to 0.005% peptide in the finished formula, which works out to roughly 3 to 10% of a 0.05% liquid, while dry powder grades carry a 0.01 to 0.05% guideline. Use the peptide content on your Kollaren CoA to convert that target into grams per batch, and start at the low end for daily-use lotions.

Working with Kollaren at the bench

Phase, temperature and pH

Add Kollaren to the aqueous phase during cool-down, below 40 °C, ideally as one of the last steps, and mix at low shear. Supplier literature for GHK places best stability between pH 5.0 and 7.0, so target that window and avoid parking the formula above pH 8.

Compatibility

Keep it away from strong oxidizers, unbuffered pure L-ascorbic acid and very low pH systems; if a routine needs both, put acids and peptide in separate steps. It is a natural partner for hyaluronic acid, niacinamide, ceramides and panthenol, and for a matrikine such as Palmitoyl Pentapeptide-4 in a two-signal story.

Collagen-support positioning

Kollaren usually ends up in overnight creams, firming serums, neck and decollete treatments, eye contour gels and concentrated ampoules. Because the liquid is colorless, it suits water-white gels where a copper peptide would tint the base. Keep marketing tied to appearance, for example skin that looks firmer, smoother or more resilient, and support any figure with a test on the finished product. More liquid actives for stacking are grouped among our liquid peptide concentrates.

Why buy Kollaren here

You get a named, copper-free GHK liquid with a CoA per lot, US shipping from Florida, and bottle sizes that scale from bench trials to small production: 1, 2, 4, 8 and 16 oz, with the price per ounce falling at each step.

Storage and shelf life

Keep the bottle tightly closed, away from light and heat, and refrigerate once opened. Comparable GHK liquids are given 12 to 18 months at room temperature and longer under refrigeration; the expiry printed on your CoA is the binding date.