Vitamin D3 5000 IU & K2 MK-7 100mcg Tablets UK
Magnesium Glycinate 650mg Capsules UK — Chelated Bisglycinate | 85mg Elemental Magnesium | 9 Authorised UK Claims | Vegan | Zero Fillers
Testosterone Pro — High Strength Zinc Triple Complex With Copper
Zinc Triple Complex Tablets — High Strength Zinc Citrate, Bisglycinate & Picolinate with Copper
Vitamin D3 10,000 IU Tablets UK | 250mcg Cholecalciferol | 5,000% NRV | No Vitamin K | High Strength | Charge Products
Korean Panax Ginseng 3125mg Tablets UK — 50:1 Root Extract | Species & Ratio Declared | 180 to 25,000 Tablets
L-Arginine HCl 750mg Vegan Capsules – USP Grade, No Fillers
Nitric Oxide PRO 750mg Capsules UK — L-Arginine HCl | Amino Acid | No Fillers | Vegan HPMC | In-House Manufactured | Charge Products
Spermer-Dons Men's Complex – Zinc for Normal Testosterone & Fertility | Zinc Bisglycinate 40mg + L-Arginine 700mg
T-Force Men's Complex | Dual Formula 25mg Zinc + 760mg L-Arginine HCl Capsules UK
Charge Products Gift Card – £10 to £100, Emailed, No Expiry
Which men's health claims are actually allowed
Search "testosterone booster" and you get thousands of products. Not one is allowed to say it: testosterone is a prescription medicine, and a supplement claiming to raise it is claiming a medicinal effect. What the register does allow is narrower, and it belongs to zinc: zinc contributes to the maintenance of normal testosterone levels in the blood, and zinc contributes to normal fertility and reproduction. Selenium carries a claim for normal spermatogenesis, which we do not currently stock. L-arginine, ginseng, ashwagandha, tongkat ali, maca and fenugreek have no authorised claim, however they are sold, and nothing at all is authorised for libido, performance or erectile function. This page is in two parts. Part 1 is the zinc products, where the claims are used. Part 2 is the ingredients men buy alongside, sold on specification.
The two zinc claims, and the research behind the wording
| Authorised claim | What it means |
|---|---|
| Zinc contributes to the maintenance of normal testosterone levels in the blood | Adequate zinc keeps testosterone within its normal range. When healthy men were put on a zinc-restricted diet, testosterone fell (Prasad et al., 1996). When men who already had enough zinc took a high dose, it did not change (Koehler et al., 2009). Zinc holds normal normal; it does not push higher. |
| Zinc contributes to normal fertility and reproduction | The reproductive system depends on cells dividing and DNA being copied correctly, both zinc-dependent processes, and zinc cannot be stored so daily intake matters. Normal function kept normal; not a treatment for infertility. |
| Also carried by zinc | Normal function of the immune system · normal DNA synthesis · cell division · normal hair, skin and nails · protection of cells from oxidative stress · normal cognitive function, among 18 claims in total. |
A zinc claim applies at 1.5mg per daily serving. Every Part 1 product is well above that. Both studies are referenced on the zinc, testosterone and fertility guide.
Part 1: zinc products that carry the claims
Spermer-Dons Men's Complex
Zinc bisglycinate 40mg (8mg zinc, 80% NRV) + L-arginine HCl 700mg. One a day, no fillers. The zinc carries the claims.
Shop now →Testosterone Pro
High-strength zinc triple complex with copper. Sold under the maintenance of normal testosterone claim.
Shop now →Choose one zinc product, not several: keep total supplemental zinc under 25mg a day.
Part 2: bought alongside, sold on specification, no claims made
Read this first. None of the products below has an authorised health claim in Great Britain, for testosterone, fertility, performance or anything else. They are here because men search for them and deserve a straight answer about the law. Each is sold on what it is: form, amount, extract ratio, purity and test results. Product names describe the product, not a result.
L-Arginine HCl 750mg Capsules
USP grade, 99.2% assay, about 620mg L-arginine per capsule. No claims made.
Shop now →Before you take any of these
L-arginine can add to the effect of blood pressure and heart medicines, including nitrates and erectile dysfunction medicines: speak to your GP or pharmacist first if you take any of them, have had a heart attack, have kidney disease or are prone to cold sores. Zinc: keep total supplemental zinc under 25mg a day; take after food. Ginseng: not with warfarin or diabetes medicines without advice. Ashwagandha: not with thyroid, sedative or immunosuppressant medicines without advice. All products: adults only; not during pregnancy or breastfeeding. Erectile difficulty, low libido or fertility concerns are GP matters; a blood test is free on the NHS and tells you whether zinc is even the question.
Choosing between them
| If you want | Choose | Because |
|---|---|---|
| Zinc with the testosterone and fertility claims, one a day | Spermer-Dons | Chelated bisglycinate, both zinc figures declared, L-arginine alongside |
| Zinc on its own | Triple Zinc + Copper or Testosterone Pro | Three forms with copper to balance long-term use |
| L-arginine on its own | L-Arginine HCl 750mg | USP grade with the assay published; no claim made |
| A botanical | Ginseng or ashwagandha | Species, ratio and equivalent declared; no claim made; read the safety notes |
Why buy from Charge Products
No boosters, no promises
The zinc claims in register wording; everything else sold on specification and says so.
Both zinc figures declared
Compound weight and elemental zinc, with %NRV against the zinc.
Plain packaging
Unmarked outer packaging on every order.
Made in Essex
Capsules and tablets made and packed in our own unit, 5 Star Food Hygiene Rating.
164,000+ verified sales
Public marketplace record, 99.7% positive.
Same-day dispatch
Before 3:30pm Monday to Friday; free UK delivery over £10.
Wholesale · Trade · B2B
Zinc and L-Arginine Wholesale UK
Zinc tablets and capsules in trade counts, L-arginine and botanical capsules loose by the thousand, white label and custom fills from our own Essex unit, certificates of analysis for your technical file. No fixed minimum.
Request a trade price →Frequently asked questions
What is a testosterone booster, legally?
In Great Britain there is no such thing. Testosterone is a prescription medicine, and no food supplement is authorised to claim it raises testosterone. The only authorised wording is that zinc contributes to the maintenance of normal testosterone levels in the blood. Products sold as boosters are making a claim they cannot make.
Does zinc raise testosterone?
No supplement can lawfully claim that. In men who already get enough zinc, extra zinc did not change testosterone in a 2009 study; in men made zinc-deficient, testosterone fell. Zinc keeps a normal level normal, which is exactly what the authorised claim says.
Does anything here help with erectile problems or libido?
No, and nothing can lawfully claim to. Erectile difficulty is a medical matter with medical causes, and there is no authorised claim for libido for any nutrient or herb. If that is the concern, see a GP; it is often the first sign of something else worth checking.
What about L-arginine, ginseng, ashwagandha and tongkat ali?
None has an authorised health claim in Great Britain. We sell L-arginine on its USP grade and assay, ginseng and ashwagandha on species and extract ratio, and we do not stock tongkat ali. None is sold with any claim about testosterone, performance or fertility.
Is Spermer-Dons a fertility treatment?
No. It is a zinc and L-arginine food supplement. The zinc carries the authorised claim that it contributes to normal fertility and reproduction, which is about keeping normal function normal. Couples who have been trying to conceive without success should see their GP.
How much zinc is too much?
UK guidance is to keep supplemental zinc under 25mg a day; long-term intake above that reduces copper absorption. Every zinc product here declares its elemental figure so you can add them up. Choose one zinc product, not several.
Why plain packaging?
Every order leaves in unmarked packaging with nothing on the outside to say what is inside.
Do you supply these wholesale?
Yes. Zinc tablets and capsules in trade counts, L-arginine and other capsules loose by the thousand, white label available. Use the contact page for a trade price.
Guides worth reading first
Shop other collections
Amino acids →Vitamins →Herbal and botanical →Magnesium and minerals →All products →
Food supplements, not medicines. Not intended to diagnose, treat, cure or prevent any disease or condition, including infertility, low testosterone, erectile dysfunction or low libido. The claims on this page are the authorised Great Britain claims for zinc in register wording and concern the maintenance of normal function only; they apply to the Part 1 products and to no others. L-arginine, ginseng, ashwagandha, CoQ10 and L-tyrosine have no authorised health claims and none are made; product names describe the product, not a result. L-arginine may interact with blood pressure, heart and erectile dysfunction medicines. Adults only. Consult your GP if you take medication or have a medical condition. Keep supplemental zinc under 25mg a day. Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle. Charge Products is a trading name of Big Idea Services Ltd, Company No. 11645389, Unit 1, 8 Towerfield Road, Towerfield Industrial Estate, Southend-on-Sea, Essex SS3 9QE.