Vitamin C is a well-documented, essential cofactor for collagen synthesis (it activates the enzymes that stabilize its structure); gelatin supplies the basic amino acids (glycine, proline, hydroxyproline). The biochemistry behind this recipe holds up — what isn't directly measured is the visible effect on 'skin glow.'

noli's read

The biochemical logic behind this recipe is correct and well established. Vitamin C is an essential cofactor for the prolyl- and lysyl-hydroxylase enzymes that stabilize collagen's triple-helix structure — severe vitamin C deficiency, in fact, causes scurvy, whose skin signs (corkscrew hairs, perifollicular hemorrhages) directly illustrate this structural role (NCBI StatPearls). A controlled trial published in the American Journal of Clinical Nutrition (Shaw et al., 2017) showed that vitamin C-enriched gelatin supplementation measurably increased a blood marker of collagen synthesis (the peptide PINP), with a dose-dependent effect (15 g of gelatin doing more than 5 g). A follow-up study (International Journal of Sport Nutrition, 2019) found the same roughly 20% upward trend in PINP, though it didn't reach statistical significance due to high individual variability. What these studies don't directly measure, though, is the visible "skin glow" the video mentions: the markers used (PINP) mostly reflect bone and general connective-tissue turnover, not a visible cosmetic effect on the face specifically. Verdict: mixed — the mechanism (vitamin C plus gelatin driving collagen synthesis) is real and measured in controlled trials, the specific visible skin-glow effect remains a reasonable extrapolation but isn't directly tested.

the sources

No named source held this one up — that absence is part of the verdict.