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Combining oral collagen with a topical retinoid or vitamin C serum often yields superior results because topical agents drive cellular turnover and surface improvement while oral agents support structural rebuilding
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Home kits often lack pharmaceutical-grade purity and precise clinical dosage control, significantly increasing the risk of adverse health effects.
For example, doctors warn that Foundayo may reduce the effectiveness of oral birth control during the first weeks of treatment or when the dose is increased, and it can also interact with certain drugs such as simvastatin, a cholesterollowering medication
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