Copper Peptide Scalp Serums: What Divi and PURA D'OR Disclose
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We sell a competing scalp serum. Both products below were checked against the brands' own pages on 24 August 2026 and independently re-verified.
Before anything else, the thing that applies to all three of us: a topical copper peptide is a cosmetic scalp product. It does not treat pattern hair loss. If you are losing hair at any speed, see a dermatologist rather than comparing serum specs.
The short answer
Neither Divi nor PURA D'OR states a copper peptide concentration.
Side by side
| Field | Divi Scalp Serum | PURA D’OR Hair Thinning Therapy |
|---|---|---|
| Stated concentration | Not disclosed | Not disclosed |
| Formulation pH | Not disclosed | Not disclosed |
| Full INCI published | Yes, 32 ingredients | Yes, 65 ingredients |
| Copper peptide position | 5th of 32 | 40th of 65 |
| Price | $48 / 30ml ($43.20 on subscription) | $24.99 / 4oz |
The INCI positions are the story
This is the most useful thing on this page.
Divi lists its copper peptide 5th of 32. PURA D'OR lists it 40th of 65.
Ingredients are ordered by descending weight down to 1%, below which order becomes arbitrary. A copper peptide at 40th of 65 is almost certainly present well below 1%, and plausibly far below. A copper peptide at 5th is in the upper part of the formula.
Neither brand tells you a number. But the ingredient lists, which both publish, imply these two products are not in the same concentration class at all, despite both being sold as copper peptide scalp treatments.
That is exactly the kind of gap a stated concentration would close, and exactly why we think the number should be on the page.
Reading a 65-ingredient scalp formula
PURA D'OR's formula is botanical-heavy and long. That is a legitimate formulation philosophy and plenty of people prefer it. It also means any single active is diluted across a lot of company.
The practical question for a scalp product is whether the active reaches the scalp rather than coating the hair. That is a function of viscosity and applicator as much as concentration, and neither brand publishes anything that lets you assess it.
What we would ask before buying any scalp serum
- What concentration, stated as a number?
- What applicator, and does it reach the scalp or the strand?
- Is the base water-thin or does it leave residue?
- What formulation pH?
If a brand answers all four you can compare it against anything. If it answers none you are buying on trust.
Related
- Copper peptides for hair and scalp, what the signal can and cannot do.
- The disclosure index, 23 products.
- Running copper peptides alongside minoxidil.
Corrections to support@amide.skin and we will note the change.