A widening parting. Less volume at the roots. A ponytail that feels thinner than it used to. For women noticing changes in their hair, finding something practical to add to their routine can feel overwhelming.
The new HR23+ Copper Peptide Hair Growth Serum, also known as CPS Serum, brings together two ingredients attracting attention in hair care: copper peptides and saw palmetto. Designed for women and men, it offers targeted scalp care and can sit alongside the HR23+ supplement as part of a broader hair-support routine.
So, what makes this combination interesting for women with thinning hair?
Copper peptides: bringing skincare science to the scalp
Copper peptides have become familiar ingredients in skincare, and their move into scalp care makes sense. The scalp is skin, after all, and deserves the same attention as the face.
CPS Serum contains Copper Tripeptide-1, commonly called GHK-Cu. Research has shown that this copper-binding peptide can stimulate collagen production in laboratory cultures of skin cells. That activity helps explain the interest in its potential to support the skin surrounding hair follicles. However, laboratory findings do not establish that a finished serum will regrow hair in women.
For women exploring copper peptides for hair thinning, the appeal is a scalp-focused approach: making the skin beneath the hair part of their everyday care.
Saw palmetto: why it features in hair-thinning formulas
Saw palmetto is a botanical ingredient studied for its potential influence on 5-alpha-reductase, the enzyme involved in converting testosterone into dihydrotestosterone, or DHT.
DHT can contribute to follicle miniaturisation in androgen-sensitive hair loss. This is why saw palmetto appears in products aimed at pattern thinning, including formulas intended for women.
There is some encouraging human research. A small, 16-week placebo-controlled trial of a particular standardised saw palmetto oil reported improvements in hair-fall measures with both oral and topical formulations. Those findings support further investigation, although they cannot be assumed to apply to every saw palmetto product—or to CPS Serum specifically.
For women, the distinction matters: hormonal hair changes are complex, and not every type of shedding is driven by DHT. Saw palmetto is an ingredient worth understanding, rather than a universal answer to female hair loss.
What makes the new CPS Serum appealing?
The attraction of CPS Serum lies in bringing these ingredients together in one topical product. Its formula also includes hyaluronic acid and squalane, with the brand positioning it as a lightweight option for scalp conditioning and fuller-looking hair.
Applied directly to the scalp, it provides a focused step for women who want to give areas of concern more attention. It is also designed to fit into an existing routine, making it an accessible addition for those already taking a hair supplement.
Rather than adding another styling product to disguise thinning, it introduces a dedicated scalp-care step.
How can it work alongside the HR23+ supplement?
A topical serum and an oral supplement have different roles in a routine.
CPS Serum provides scalp care where it is applied. The HR23+ supplement provides dietary ingredients taken by mouth. The supplement combines 23 ingredients, including vitamins, minerals, amino acids and botanical extracts, and is intended for daily nutritional hair support.
That makes the pairing straightforward in principle: scalp care alongside nutritional support. For women already using the supplement, the serum offers a way to expand their routine without adding another oral product.
There is no established clinical evidence here that using the two together produces better regrowth than either alone. Supplements are also most relevant when they address a nutritional need; taking extra nutrients does not automatically mean more hair growth.
The practical appeal is having two distinct steps that can be followed consistently.
Building a routine you can maintain
Follow each product’s current label directions and introduce new scalp products gradually so you can assess tolerance. Taking occasional photographs of your parting in the same lighting can also make changes easier to judge than checking the mirror every day.
If hair loss is sudden, patchy or accompanied by scalp discomfort, seek medical advice before relying on a cosmetic routine. Women who are pregnant, trying to conceive or breastfeeding should seek professional advice before using saw palmetto products.
A new option for women exploring scalp support
For women interested in copper peptides and saw palmetto, HR23+ CPS Serum brings both into a convenient scalp formula. Its combination of targeted application, conditioning ingredients and compatibility with the brand’s supplement makes it worth considering as part of a consistent hair-care routine.
Explore the new HR23+ Copper Peptide Hair Growth Serum and learn more about pairing it with the HR23+ Hair Supplement.
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