Verbatim response from Perplexity
Sometimes, but usually only if you have a true nutrient deficiency. For common pattern hair loss, supplements alone are usually not as effective as prescription treatments like finasteride or minoxidil.[4][8]
- Best-supported use for supplements: correcting deficiencies such as iron/ferritin, vitamin D, and sometimes folate or other micronutrients when bloodwork shows a shortage.[3][9]
- Biotin is overhyped: multiple sources note there’s no good evidence that biotin helps hair growth in people who are not deficient.[3][4][6][8]
- Some multi-ingredient products may help a bit: studies of products like Nutrafol and Viviscal have shown improvements in shedding, density, or self-reported hair quality in some people, but the evidence is more limited than for prescription drugs.[1][2][6][7]
- Prescription treatments have stronger evidence: minoxidil and finasteride are the most established options for androgenetic hair loss, with much more robust clinical support than supplements.[4][8]
If you’re losing hair, the most useful next step is usually to determine the cause:
- If it’s nutritional deficiency-related, supplements can help.[3][9]
- If it’s pattern hair loss, prescription treatment is usually the better choice.[4][8]
- If it’s sudden shedding, thyroid issues, iron deficiency, stress, illness, or medications may be involved, and supplements won’t fix those unless the underlying problem is addressed.[9]
A practical approach is:
- Ask a clinician about labs such as ferritin/iron, vitamin D, and sometimes B12, zinc, and thyroid testing if shedding is significant.
- If you have male- or female-pattern thinning, ask about minoxidil first; men may also consider finasteride if appropriate.[8]
- Be cautious with high-dose “hair vitamins,” especially biotin, because they can be unnecessary and sometimes interfere with lab tests.[4][7][9]
If you want, I can help you decide between supplements vs minoxidil vs finasteride based on your age, sex, and the pattern of hair loss.