Do the benefits of collagen help women?

Place one, the skin trials, and why they were run in women

Do the benefits of collagen help women is a question the marketing answers with a photograph and the research answers with a recruitment table, and the honest page reads the table, because the research on collagen in women comes from three identifiable places and each says something different. Place one is the skin trials, and the reason they matter to women is a number from the dermatology literature rather than the supplement aisle: dermal collagen content, measured in the classic skin biopsy studies, falls by around a third in the first five years after menopause and more slowly afterwards, tracking the fall in oestrogen, which is why skin thins, loses elasticity and holds less water in the years around fifty, and why the oral collagen skin trials recruited mostly women aged thirty-five to sixty-five, the group in whom a small change would be measurable. Those trials gave 2.5 to 10 grams of hydrolysed collagen a day for eight to twelve weeks and measured by instrument, elasticity by cutometer suction, hydration by corneometer capacitance, and reported small gains against placebo, a few percent, in trials that were small, mostly funded by the peptide's manufacturer and measured by devices rather than mirrors, the skin measurement literature's caution that an instrument detects what a person does not see. So the benefit for women in place one is a real instrument result at 2.5 to 10 grams over two to three months, in the population where dermal collagen is falling fastest, with the size of the effect and the funding of the trials both printed beside it, and with the register's line beneath: collagen holds no UK claim for skin or anything else, and the only collagen sentence a label may carry is vitamin C's, that it contributes to normal collagen formation for the normal function of skin, with zinc, biotin and vitamin A holding the maintenance of normal skin, which is why the honest capsule pairs collagen with vitamin C and zinc and lets those ingredients carry the words.

Places two and three, the bone trial and the tendon and joint work, and the same molecule in men

Place two is a single trial and the honest page treats it as one: twelve months of five grams a day of a specific collagen peptide in postmenopausal women with reduced bone density reported small increases in bone mineral density at the spine and hip against placebo, with movement in the bone turnover markers, a result from one trial of one manufacturer's peptide that has not been reproduced independently and is the basis of no authorised claim, so it belongs on the page as research a postmenopausal reader might find interesting and not as a reason, the reasons for bone in that decade being resistance training, adequate protein, calcium and vitamin D, whose claims for bone exist and are worded. Place three is the tendon and joint work, and here the word women stops mattering, because the pre-loading protocol, around fifteen grams of gelatin or hydrolysed collagen with roughly 50mg of vitamin C an hour before loading, raised collagen synthesis markers in a small trial in a way that has nothing to do with sex, and the joint comfort trials at around ten grams over months recruited both, so a woman lifting with a complaining Achilles or knee has exactly the entry a man has, as research and with the loading programme doing the work. The secondary question the search brings, marine collagen benefits for men, is answered by the same three places with the weighting changed: the skin trials mostly did not recruit men and the bone trial recruited none, so a man's evidence is place three plus a general extrapolation from place one, and the molecule in the capsule is identical, hydrolysed type 1 collagen behaving the same way in either digestive tract. A note on the female lifter's protein ledger, since it is where the collagen habit does harm: a woman eating toward 1.6 grams per kilo who counts a collagen scoop as protein has counted protein with no tryptophan and little leucine, so the scoop is booked separately and the complete protein eaten as usual, the anabolic resistance literature making that point sharpest after fifty, when the muscle needs more leucine per meal, not less. The worked example on its true terms: two capsules, 1200mg hydrolysed type 1 marine collagen with 12mg vitamin C plus zinc, 120 for £16.99 at 28p a day, lab tested and UK made, a dose below the 2.5 to 10 grams the skin trials gave, taken for vitamin C's collagen formation sentence and zinc's normal skin line, the two sentences the register lets a woman's label say. Three places: skin, real by instrument at trial doses in the decade dermal collagen falls; bone, one trial and no reason; tendons and joints, the same as for men.

What to check on the label