Walk down any pharmacy aisle and you'll find shelves of supplements promising thicker, fuller, healthier hair. Biotin, collagen, keratin, "hair vitamins" — the marketing is persuasive. But do any of them actually work?
The answer is: it depends. And that depends largely on why you're losing hair in the first place.
When Supplements Can Help
Genuine Deficiencies
If your hair loss is caused by a nutritional deficiency, addressing that deficiency will help. Common culprits include:
- Iron: Low iron (even without full anaemia) is a common cause of hair shedding, especially in women
- Vitamin D: Deficiency is increasingly common and affects hair follicle cycling
- Zinc: Important for hair tissue growth and repair
- Protein: Hair is made of protein; inadequate intake affects hair quality
But here's the key: you need to actually be deficient. Taking iron supplements when your iron is normal won't help your hair — and may cause side effects.
The Biotin Question
Biotin (vitamin B7) is heavily marketed for hair growth. The truth? Biotin deficiency is rare in people eating a normal diet. Most people taking biotin supplements have adequate levels already — and there's limited evidence that extra biotin helps hair in non-deficient individuals.
What biotin CAN do is interfere with certain blood tests, potentially leading to misdiagnosis of other conditions.
When Supplements Won't Help
Supplements won't address:
- Genetic hair loss (androgenetic alopecia) — this is hormonal, not nutritional
- Autoimmune hair loss (alopecia areata) — the immune system is the problem
- Scarring alopecias — follicles are damaged
- Traction alopecia — caused by physical stress on hair
Taking supplements for these conditions is essentially throwing money away — and may delay getting treatment that could actually help.
The Real Answer: Find the Cause First
Before buying supplements, find out why your hair is falling out. A blood test can identify deficiencies. A trichoscope examination can assess follicle health and identify other factors.
Only then can you make informed decisions about whether supplements might help — and which ones.
What About Expensive "Hair Vitamins"?
Many premium hair supplements combine basic vitamins (you could buy cheaply) with exotic-sounding ingredients lacking solid evidence. The premium price often pays for marketing, not quality.
If you do have a deficiency, a standard supplement from a pharmacy will usually suffice.
Getting Proper Assessment
At Solent Trichology Clinic in Gosport, consultations include detailed scalp examination and discussion of potential contributing factors — including whether nutritional assessment might be worthwhile. This approach targets the actual cause rather than guessing with supplements.
The Bottom Line
Supplements can help hair loss — but only if you're actually deficient. Find out what's causing your hair loss before spending money on pills that may not help.
📞 Phone: 07904 268599
🌐 Website: solenttrichologyclinic.co.uk

