Yes, in the sense that collagen works the same way in a man’s body as anyone else’s — there’s no male-specific formulation needed. But the useful evidence for men isn’t about skin, which is where most collagen marketing points. It’s for muscle strength and joint pain, in trials using doses well above what a single jelly stick delivers. Testosterone and hair-loss claims aimed at men aren’t supported at all.
Why the marketing skews female when the biology doesn’t
Every product in our where-to-buy guide is styled and marketed toward women — pink pouches, “inner beauty” branding, skin-focused claims. That’s a packaging and retail-category decision, not a formulation fact, as we’ve covered elsewhere. Collagen decline with age happens in men and women alike, and nothing about hydrolysed collagen peptides — marine, bovine, or a plant-based support blend — works differently depending on who eats it. What genuinely differs is which outcomes have actually been studied in men specifically, and that’s worth being honest about rather than assuming the skin research just carries over.
What’s actually studied in men: muscle strength
The best evidence here isn’t about skin at all. A randomised controlled trial in British Journal of Nutrition gave 53 elderly sarcopenic men (mean age 72.2) either 15g of collagen peptides daily or a placebo, alongside a 12-week resistance training programme. The collagen group gained significantly more fat-free mass (+4.2kg vs +2.9kg), more muscle strength (+16.5Nm vs +7.3Nm), and lost more fat mass (-5.4kg vs -3.5kg) than the placebo group.
A second trial extended this to middle-aged, untrained men — 97 completed a 12-week resistance programme taking either 15g/day collagen peptides, a placebo, or whey protein. Collagen significantly beat placebo on fat-free mass gain (+3.42kg vs +1.83kg). The honest caveat: it wasn’t significantly different from whey protein. Collagen isn’t shown to outperform an established protein source — it’s shown to beat doing nothing.
Both trials used 15g of collagen peptides a day, alongside actual resistance training. The jelly sticks we track deliver roughly 1,000–5,000mg (1–5g) per stick — a meaningful fraction of the studied dose, not a match for it, and neither trial tested a jelly-stick format specifically.
What’s actually studied in men: joint pain
Separately from muscle, there’s real trial evidence for joint pain. A randomised, double-blind, placebo-controlled trial gave 160 adults with osteoarthritis (mean age 52.4) either 10g/day of hydrolysed Type I and III collagen peptides or a placebo for 8 weeks, with a significant reduction in reported joint pain in the collagen group.
Worth being precise here: a lot of joint-specific collagen research uses Type II collagen (often branded UC-II), which is a different, separately-dosed product category from the Type I collagen in every jelly stick we track — we’ve covered that distinction before and it matters, because Type II studies don’t tell you anything about what a Type I product will do. The trial above used Type I, which is the relevant comparison — but again at 10g/day, well above a single stick’s dose.
What’s not supported: testosterone and hair loss
Two claims show up a lot in collagen marketing aimed specifically at men, and neither holds up. Testosterone: collagen doesn’t contain hormones, and there’s no clinical evidence in human trials that it raises or lowers testosterone levels — the “collagen as a natural test booster” framing isn’t supported by anything we could find. Hair loss: evidence for collagen and hair health generally is thin and mostly mechanistic (collagen’s role in keratin production) rather than clinical, and for androgenetic (pattern) hair loss specifically — a genetically and hormonally driven condition — there’s no clinical evidence collagen slows or reverses it. If male pattern baldness is what you’re trying to address, this isn’t the evidence base to do it on.
Skin: same biology, different study population
The skin research this site cites elsewhere — the VERISOL trial behind our evidence roundup — was run in women aged 35–55. That’s a real gap worth naming honestly: the mechanism (ingested collagen peptides) isn’t described anywhere as sex-specific, but the specific trial data on skin hydration and elasticity was collected in a female study population, not a mixed or male one. We’re not aware of an equivalent, well-designed skin trial run specifically in men.
What you’re actually allowed to claim
None of the above is a health claim, and we’re not making one. In the UK and EU, the only authorised claim connecting a nutrient to collagen is that Vitamin C contributes to normal collagen formation for the normal function of skin. The muscle and joint trials above are real, published, peer-reviewed research — but reporting that research honestly is different from claiming a specific product “builds muscle” or “fixes joint pain.” No product on this site makes that claim, and the doses involved mean you shouldn’t expect a single jelly stick to replicate a 15g or 10g clinical trial result.
The honest verdict
If you’re curious because of the muscle or joint research specifically, know the real trials used doses several times higher than a single stick, alongside resistance training in the muscle studies — this isn’t a shortcut to either outcome. If you’re just curious about the format because the marketing has never been aimed at you, the case is simpler: it’s a tear-open, no-water pouch that works the same regardless of who’s eating it. Our full buying guide compares six real, currently-available UK options, with no branding assumptions either way.