Botanical Hair Growth Serum
$21.96
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Botanical Hair Growth Serum
$21.96
Declining hair density is often a scalp health issue as much as a follicle issue — which is why this serum starts with the scalp: a patented algae complex that has been studied specifically for its effect on the biological environment where hair growth decisions are made.
What Is Densidyl and Why Does It Matter for Hair Density?
Densidyl is a patented active complex derived from Chlorella vulgaris and Spirulina platensis — two microalgae studied for their role in supporting the scalp's extracellular matrix and stem cell environment around the hair follicle. In clinical study, Densidyl has been shown to improve the appearance of hair density and scalp health markers by supporting the biological signaling environment that keeps follicles in their active anagen (growth) phase longer. The combination of Chlorella and Spirulina provides amino acids, polysaccharides, and phycocyanin — an antioxidant pigment unique to Spirulina — that nourish the scalp surface and support the cellular activity around the dermal papilla.
Rosemary Extract (Rosmarinus officinalis) has been independently studied in comparative research against minoxidil — the most widely used OTC hair regrowth active — and showed comparable results for increasing hair count at the 6-month mark, with fewer scalp side effects in participants. Its mechanism involves improved scalp microcirculation and inhibitory activity in the DHT conversion pathway.
Is rosemary oil as effective as minoxidil for hair growth?
A 2015 randomized controlled trial published in SKINmed Journal compared rosemary oil to 2% minoxidil solution in participants with androgenetic alopecia over 6 months. Both groups showed statistically significant increases in hair count at the 6-month mark, with no significant difference between them. Rosemary produced less scalp itching than minoxidil. This doesn't mean rosemary is a pharmaceutical replacement for minoxidil in all cases — particularly severe androgenetic alopecia — but it does mean that for earlier-stage or prevention-oriented use, rosemary is a well-evidenced botanical option with a favorable tolerability profile.
Key Benefits
Densidyl patented algae complex
A clinically studied combination of Chlorella vulgaris and Spirulina platensis that supports the scalp extracellular matrix and follicular stem cell environment to promote the appearance of hair density.
Rosemary extract with comparative minoxidil data
Rosmarinus officinalis extract has been studied in a randomized controlled trial showing comparable hair count improvement to 2% minoxidil at 6 months, with fewer reported side effects.
DHT-pathway activity
Rosemary extract contributes inhibitory activity in the 5-alpha reductase pathway that converts testosterone to DHT in scalp tissue — a key driver of androgenetic thinning.
Scalp microcirculation support
Rosemary's vasodilatory activity supports blood flow to the scalp microvascular network, improving nutrient delivery to the follicular dermal papilla.
Antioxidant scalp nourishment
Phycocyanin from Spirulina and polyphenols from rosemary provide antioxidant support against the oxidative stress that contributes to follicular miniaturization.
Who This Is For
This serum is for women noticing reduced hair density, wider parts, or overall hair thinning who prefer a botanical approach supported by clinical research. It is well suited for early to moderate androgenetic or hormonal hair thinning, and as a preventive measure for those with a family history of hair loss.
Where It Fits in Your Routine
AM and/or PM. Apply directly to the scalp on dry or towel-dried hair. Work in section by section and massage gently with fingertips. Do not rinse. Consistent daily use for a minimum of 12 weeks is recommended before assessing results, as hair growth cycles operate on a 3–6 month timeline.
This product is a cosmetic and has not been evaluated by the Food and Drug Administration. It is not intended to diagnose, treat, cure, or prevent any disease or skin condition. Results vary by individual, skin type, and consistency of use. Patch test before full application. Discontinue use if irritation occurs. Keep out of reach of children. For external use only. Avoid contact with eyes.
Made with Purpose
Densidyl — a patented Chlorella and Spirulina complex studied for follicular stem cell support — pairs with Rosemary Extract, which showed comparable results to 2% minoxidil in a 6-month randomized controlled trial. Botanical evidence-first formulation.
Densidyl Algae Complex
Rosemary Microcirculation
DHT Pathway Inhibition
Clinically Studied Actives
Anagen Phase Support
Antioxidant Scalp Nourishment