Biolabs 1% AHK-Cu Copper Peptide Hair & Scalp Serum 50ml
- 1% AHK-Cu
- Leave-in scalp serum, 50ml
- For a scalp that feels dry or tight
- Thicker, fuller-looking hair, with regular use
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Hair that looks thicker and fuller, with regular use. Leaves the scalp feeling nourished and comfortable.
One step: massage a few drops into your scalp, 1–2 times a day, on damp or dry hair. No rinsing.
1% AHK-Cu, in a rosemary hydrosol base with niacinamide and D-panthenol.
Our AHK-Cu hair serum is a 50ml leave-in scalp serum with 1% AHK-Cu, a copper peptide used in cosmetic hair care. It's made on a rosemary hydrosol base with niacinamide, D-panthenol and two forms of hyaluronic acid, and it's light enough to use every day without weighing hair down.
Think of it as skincare for your scalp. You massage a few drops in at the roots, leave it there and style as usual. Because the base is a hydrosol rather than an oil, it doesn't leave hair greasy or flat, and it works on damp or dry hair.
The goal is cosmetic: a scalp that feels hydrated, refreshed and comfortable, and hair that looks fuller and healthier, with regular use, and feels softer and easier to manage. To learn how AHK-Cu differs from GHK-Cu, the copper peptide in our face range, read our AHK-Cu guide.
- AHK-Cu, 1%: the copper peptide at the centre of the formula, included so the scalp looks cared for and hair looks fuller, with regular use.
- Rosemary hydrosol: the water-based botanical base, chosen for a clean, refreshed scalp feel.
- Sodium hyaluronate and hydrolysed sodium hyaluronate: help the scalp and hair hold on to moisture.
- Niacinamide (vitamin B3): a familiar skincare ingredient, included for a balanced-looking scalp.
- D-panthenol (pro-vitamin B5): conditions hair and scalp for a softer, smoother feel.
- Tocopherol (vitamin E): a conditioning ingredient in the base.
It's for anyone who wants a daily scalp-care step. If your scalp feels dry or tight, or your hair looks flat, dull or less full than you'd like, it's a lightweight way to add conditioning at the roots. It suits people who dislike oily scalp products, as well as anyone building a simple copper peptide hair routine.
If you have a scalp or hair concern, speak to a doctor or dermatologist. This is a cosmetic product.
- Part your hair and apply a few drops directly to the scalp and roots.
- Massage gently with your fingertips.
- Leave it in. Don't rinse.
- Use 1–2 times a day, with hair damp or dry.
Keep it away from your eyes, and stop using it if irritation occurs.
- Prefer a mist? The 1% AHK-Cu Hair & Scalp Spray (60ml) has the same 1% AHK-Cu in a spray format. Choose whichever format you prefer.
- Your usual shampoo and conditioner are fine. Apply the serum after washing, once your hair has been towel-dried.
- Vitamin C: as with all our copper peptide products, keep vitamin C out of the same routine.
Want to see how our hair products sit alongside the face range? See the body and hair section of which peptide serum or cream is right for you, or browse AHK-Cu hair and scalp care.
What's the difference between AHK-Cu and GHK-Cu?
Both are copper-bound peptides made of three amino acids. AHK-Cu is mainly used in hair and scalp care, and GHK-Cu mainly in skincare. Our AHK-Cu guide compares them in detail.
Is this a medical treatment?
No, it's a cosmetic scalp serum for the look and feel of your scalp and hair. It isn't intended to diagnose, treat, cure or prevent any disease.
Will it make my hair greasy?
It's a lightweight, non-greasy, water-based serum, so it's designed to disappear into the scalp without an oily film.
Serum or spray?
Both are 1% AHK-Cu. The serum (50ml) uses drops for targeted application at the roots; the spray (60ml) mists over a wider area. Pick the format you'll use consistently.
Can I use it on damp hair?
Yes. Damp or dry, either works, so apply it whenever it fits your routine.
Size: 50ml. Peptide: 1% AHK-Cu. Format: leave-in cosmetic serum for hair and scalp.
Full ingredient list: Rosemary Hydrosol, Butylene Glycol, Pentylene Glycol, Propanediol, Niacinamide, D-Panthenol, Sodium Hyaluronate, Hydrolysed Sodium Hyaluronate, Tocopherol, AHK-Cu, Phenoxyethanol.
Free SA delivery on orders of R1,500 or more (R135 below). SA delivery in 2–5 business days (express 1–3). Ships worldwide for a flat R850.
- National Center for Biotechnology Information (2026). PubChem Compound Summary for CID 168431292, AHK-Cu. pubchem.ncbi.nlm.nih.gov
- COSMILE Europe INCI database: Niacinamide. cosmileeurope.eu
- COSMILE Europe INCI database: Panthenol. cosmileeurope.eu
For external cosmetic use only. Avoid contact with eyes. If irritation occurs, discontinue use. Keep out of reach of children. This cosmetic product is not intended to diagnose, treat, cure or prevent any disease.