How the Ingredients Work

• Caffeine

  Caffeine has been shown in multiple studies to directly stimulate hair-follicle growth and counteract androgen (testosterone/DHT)-based suppression of follicles. For example, one study of human scalp follicles found that caffeine alone led to significant stimulation of follicle growth, and counteracted the growth‐suppressing effect of testosterone. PubMed+2Karger Publishers+2

  Mechanisms include: enhancing keratinocyte and dermal papilla cell proliferation, prolonging the anagen phase of the hair-cycle, improving microcirculation around the follicle and thus better nutrient/oxygen delivery. MDPI+1

  In short: caffeine helps “wake up” dormant or slow follicles, supports growth and helps prevent follicle miniaturization.
  

  Baicapil (and its botanical components)

  Baicapil is a patented blend combining baicalin (from Scutellaria baicalensis, Chinese skullcap) plus soy and wheat sprout extracts rich in sugars. The proposed mechanisms:

  • Providing extra metabolic fuel (sugars) for growing follicles (which consume more glucose compared to resting follicles) PMC+1
  • Inducing telomerase reverse transcriptase (TERT) activity, activating follicle stem cells and triggering a new anagen (growth) phase cycle. PMC
  • Protecting mitochondrial DNA in stem cells and fibroblasts from oxidative stress, thus preserving follicle vitality. PMC
    Clinical evidence: In a six-month in-vivo trial with 61 volunteers, a 3% Baicapil lotion increased the anagen hair percentage by ~12.7% vs ~2% in placebo; the anagen/telogen ratio improved by ~68.6% vs ~3.6% in placebo. PMC+1
  • Thus: Baicapil supports follicle stem-cell activation, prolongs the growth phase and improves density.

• Saw Palmetto

  Saw Palmetto (Serenoa repens) extract has been studied as a botanical 5-alpha-reductase (5-AR) inhibitor — meaning it can reduce the conversion of testosterone into DHT (dihydrotestosterone), which is implicated in androgenetic alopecia (pattern hair loss). PMC+2Wimpole Clinic+2

  Key findings include: in a systematic review of RCTs and cohort studies, saw palmetto (100–320 mg topical/oral) improved overall hair quality in ~60% of participants, increased total hair count by ~27%, and increased hair density in up to ~83%. PubMed+1

  Mechanisms: DHT blockage → protects follicles from hormonal miniaturisation; also anti-inflammatory effects on the scalp. Medical News Today
  Therefore: Including saw palmetto helps protect hair follicles from androgen-driven shrinkage and loss, making it useful for thinning hair and early pattern-loss.

  Argan Oil

  Argan oil is rich in fatty acids, antioxidants (vitamin E) and oleic acid. While the evidence for direct stimulation of follicle growth is limited, the research indicates it helps improve hair-shaft quality, reduce breakage, protect against oxidative damage, and maintain a healthy scalp environment. For instance, one review notes that argan oil improved sebum regulation, reduced oxidative damage and improved hair texture, though human clinical data on growth are still limited. Wimpole Clinic

  In this way: Argan oil supports hair quality (thicker looking, healthier shaft) and provides a strong foundation for growth by reducing damage and maintaining scalp health.

• Biotin (Vitamin B7)

  Biotin is a co-factor for carboxylase enzymes involved in amino acid metabolism, fatty acid synthesis and keratin production. Technically, biotin deficiency has been shown to cause hair-loss and brittle nails; supplementation in deficient individuals leads to improvement. PMC

  However: For healthy individuals without biotin deficiency, evidence of benefit for hair growth is weak. A recent review concluded there were no high-quality studies showing clear growth or density benefits for non-deficient people. JCAD+1

  Thus: Biotin forms part of the nutritional support framework — especially important if there is marginal deficiency, but should not be relied upon alone as a major growth driver.

  Rosemary (Rosmarinus officinalis)

  Rosemary oil/extract has been shown in a randomised controlled study of 100 patients with androgenetic alopecia to produce similar hair-count improvements over six months as 2 % minoxidil (the standard treatment) — albeit with fewer side-effects. PMC+1

  Mechanisms include: improved micro-capillary blood flow around hair follicles (better nutrient delivery), anti-inflammatory and antimicrobial effects on the scalp (improving follicle environment). hers

  Therefore: Rosemary supports the scalp/folllicle environment, making growth promotion more effective.

• Aloe Vera

  Aloe vera has long been used for scalp soothes, itch/dandruff relief and improving scalp micro-environment. Evidence suggests its key compounds (e.g., aloenin) may promote hair-follicle health and hair-growth in alopecia patients. ResearchGate

  Functions: soothes irritation, improves scalp circulation and hydration, helps remove build-up and flaking — contributing to healthier follicles and less shedding.