Why Before-and-After Photos Are Unreliable
Lighting, angle, makeup, camera, time of day and expression change apparent skin quality more than most interventions do. Selected pair
8 July 2026Read →
Independent Gelagen reviews, dose-by-dose ingredient evidence, weight-loss science and label-literacy guides — 285 medically reviewed articles.
Lighting, angle, makeup, camera, time of day and expression change apparent skin quality more than most interventions do. Selected pair
Both underactive and overactive thyroid cause hair and nail changes — thinning, dryness, brittleness and, in hypothyroidism, loss of th
The one outcome you can measure rather than feel, which makes it the one worth tracking.
A reasonable nutritional layer, and no substitute for two blood tests.
Ferritin measures iron stores, and low ferritin is associated with hair shedding even before anaemia appears. It is one of the most com
Some ingredients have genuine human evidence, usually small effects in specific populations, at doses many products do not contain. Oth
A physiological stress pushes many follicles into the resting phase at once, and they shed together roughly three months later. Illness
Psychological stress affects skin through cortisol, inflammation and barrier function, and it is a recognised trigger for several derma
Real mechanisms, modest amounts, and a supporting role behind sunscreen.
Hair and nails are made of keratin, a structural protein. Cofactor vitamins help assemble it, but they cannot substitute for the amino
Severe dehydration affects skin, but in people drinking normally, extra water does not measurably increase skin hydration. Skin water c
Priced at the top of the category for a formula that is above average but not unusual.
Smoking accelerates visible skin ageing through vascular damage and collagen breakdown, and heavy alcohol contributes through dehydrati
Rosacea is a chronic inflammatory condition involving vascular reactivity and barrier dysfunction. It has identifiable triggers and eff
A mild profile with two total-intake cautions and one laboratory interaction.
Order direct, keep the confirmation, and photograph the panel the day it arrives.
Skin repair, cell division and barrier recovery are concentrated during sleep, and short sleep is associated with slower barrier recove
Acne involves follicular hyperkeratinisation, sebum, Cutibacterium acnes and inflammation, influenced by hormones and genetics. Nutrien
The common causes are thin periorbital skin showing underlying vessels, hyperpigmentation, volume loss creating shadow, and fluid reten
A baseline is a short written and photographic record made before you start, so later comparison is against evidence rather than memory
A fair policy attached to a product whose results arrive after it closes.
Three bottles. Six only on a repeat order, once you already know how you respond.
Nearly all the strong evidence for nutrients affecting skin, hair and nails comes from studies in people who were deficient. Adding mor
Vitamin E protects fats in cell membranes; vitamin C works in the water phase and regenerates spent vitamin E. Neither works in isolati