Nutrition
Dietary Collagen Vs Topical Serum Comparison
Dietary collagen versus topical serum comparison—oral peptides have modest trial data; topical collagen mainly hydrates surface layers, not deep dermis.
Dietary collagen versus topical serum comparison separates two popular routes: oral peptides may modestly support skin hydration and elasticity in some trials at ten to fifteen grams daily with vitamin C; topical collagen mostly hydrates the stratum corneum because large molecules do not rebuild deep dermis. Food protein, produce, and sleep still dominate repair.
Neither replaces SPF or retinoids prescribed for photoaging.
Common questions
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Which works better for skin—drinking or applying collagen?
Oral peptides show modest hydration and elasticity data in trials; topicals mainly moisturize. Adequate protein, vitamin C from food, and sun protection still matter more.
Related terms
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