Evidence-Based Compounds for Hair Growth & Retention
Hair loss is usually either androgenetic (DHT-mediated), nutritional, or stress-related — and each requires a different approach. Most hair supplements are biotin pills marketed to people who aren't biotin deficient. Here's what the evidence actually supports for each mechanism.
Top Compounds
The BioAccelera Hair Retention Stack
⏰ Morning with breakfast
- Saw palmetto 320mg daily (standardized extract)
- Iron bisglycinate 25mg (only if ferritin < 70)
- Zinc picolinate 30mg daily
- GHK-Cu topical (copper peptide — stimulates follicles)
- Vitamin D3 5000 IU (if < 50 ng/mL)
💡 Step 1 is ALWAYS bloodwork. Check ferritin (not just iron), zinc, vitamin D, thyroid panel, and hormones. Many cases of hair loss in women are ferritin deficiency with 'normal' iron. Saw palmetto is a mild 5-alpha reductase inhibitor — weaker than finasteride but with fewer side effects.
Frequently Asked Questions
Does biotin help with hair loss?
Only if you're deficient — and most people aren't. Biotin deficiency causes hair loss, but supplementing biotin when you're already sufficient does nothing. It's one of the most over-marketed supplements in existence. Get your levels checked first.
Is saw palmetto as good as finasteride?
No. Finasteride blocks ~70% of DHT conversion; saw palmetto maybe 30%. But saw palmetto has far fewer side effects (no sexual dysfunction risk) and is available OTC. For mild-moderate androgenetic alopecia, it's worth trying first.
Can stress cause hair loss?
Absolutely. Telogen effluvium (stress-induced hair shedding) is extremely common. High cortisol pushes hair follicles into the resting phase prematurely. This is usually temporary (3-6 months) and resolves when the stressor does. Ashwagandha's cortisol-lowering effects can help.
What about minoxidil?
Minoxidil (topical or oral low-dose) has strong evidence and is the first-line OTC treatment for pattern hair loss. It works via vasodilation and prolonging the growth phase. It's not a supplement — it's a drug — but it works. Consider it alongside these supplements for androgenetic alopecia.
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