Compare products marketed for testosterone on what each daily dose actually contains, such as zinc, D-aspartic acid or herbal extracts, and the cost per day. No food supplement is authorised to raise testosterone, so we show you the one relevant authorised claim and when to see your GP instead.
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Do testosterone boosters work?
No food supplement sold in the UK is authorised to claim that it boosts or increases testosterone. People searching for "testosterone boosters" usually mean blends of vitamins, minerals, amino acids such as D-aspartic acid, and herbs; in this collection that includes a powdered formula, a D.A.A product, men's multivitamins with added maca or herbs, and a pre-workout.
The only authorised claim that mentions testosterone is about zinc: "Zinc contributes to the maintenance of normal testosterone levels in the blood". It may only be used where a product is at least a source of zinc, and it's a claim about zinc, not about any "testosterone booster" formula or its other ingredients.
How much zinc is in a testosterone supplement?
It varies, so check the label. The NRV for zinc is 10mg, and the NHS says men aged 19 to 64 need about 9.5mg a day and should not take more than 25mg of zinc supplements a day unless advised to by a doctor, because high doses reduce copper absorption.
If you already take a multivitamin or a zinc supplement, add up the zinc across everything you take.
What should you do if you think you have low testosterone?
See your GP. The NHS says a GP can check your symptoms and that blood tests are used to measure testosterone levels; if a deficiency is confirmed, testosterone replacement may be offered as an injection or gel.
The NHS also says testosterone falls by about 1% a year from around 30 to 40, which is unlikely to cause problems on its own, and that lack of sleep, a poor diet, lack of exercise, drinking too much alcohol and smoking can cause many of the same symptoms. If you take medication, speak to your GP or pharmacist before taking any supplement.
Do these products contain caffeine?
Some do, particularly pre-workout formulas, so check the label for caffeine per serving. EFSA (the European Food Safety Authority) says single doses of up to 200mg and up to 400mg a day for healthy adults do not raise safety concerns, counting every source in your day.
We sell the products on this page. That's our commercial interest, and it's why we show the evidence alongside them. This page is general information for adults, not personalised medical advice. Food supplements should not replace a varied, balanced diet.
Written by Andy Arshad, SupplementHQ. Last reviewed 11 October 2026.