Does this work as well as minoxidil?

No — minoxidil has substantially stronger clinical evidence and larger effect sizes. This peptide serum is an adjunct or alternative for people who can't tolerate minoxidil or want to stack mechanisms. Effect sizes from supplier studies suggest ~10-20% hair density improvement over 6 months, vs. 40%+ for minoxidil.

Can I use this with minoxidil?

Yes, and many protocols do. Apply minoxidil first (wait for absorption), then layer the peptide serum. They work on partly overlapping and partly distinct pathways.

scalp treatment60ml

Multi-Peptide Serum for Hair Density

Name: Multi-Peptide Serum for Hair Density
Brand: The Ordinary
Price: 17.80 USD
Availability: InStock

The Ordinary

The Ordinary's hair-density serum layers four commercial peptide-adjacent complexes — REDENSYL (dihydroquercetin-glucoside + epigallocatechin), PROCAPIL (biotinyl tripeptide-1 + apigenin), CAPIXYL (acetyl tetrapeptide-3 + red clover extract), and BAICAPIL (baicalin + biotinoyl tripeptide). The mechanism targets hair follicle dermal papilla cells, extending anagen phase and activating follicle stem cells. Evidence for each complex individually is mid-tier (mostly supplier-funded studies), but the stacked formulation at $18 represents the cheapest route to a multi-complex peptide hair treatment. Realistic expectations: modest hair density improvement over 4-6 months with daily use, smaller effect size than minoxidil but complementary mechanism.

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Peptides in this product

GHK-Cu (Copper Tripeptide-1)

Hair follicle signaling (mechanism-adjacent)

Targets

Peptides for Hair Growth

Key ingredients

Biotinyl Tripeptide-1Acetyl Tetrapeptide-3Dihydroquercetin-GlucosideBaicalin

How to use

Apply a few drops directly to dry or damp scalp once daily, focusing on areas of concern. Massage in for 30 seconds. No rinse-out required. Results typically take 4-6 months of consistent use.