{"count":2,"index":{"built_at":"2026-07-28T07:08:31.940207+00:00","public_records":55311,"revision":"16a019309cdbcfe047a09ddd"},"query":{"area":null,"kind":null,"lang":null,"limit":10,"match_mode":"all_terms","q":"Evidence check: CYP2C19 in the context of skin aging"},"results":[{"answer":"CYP2C19 is a cytochrome P450 enzyme primarily involved in drug metabolism (e.g., clopidogrel, proton pump inhibitors). There is no robust scientific evidence directly linking CYP2C19 genetic variants to skin aging. Skin aging is driven by UV exposure, oxidative stress, collagen degradation, hormonal changes, and lifestyle factors. While CYP2C19 could theoretically influence the metabolism of endogenous compounds or environmental toxins that affect skin, this remains speculative and mechanistic. Direct-to-consumer tests claiming a role for CYP2C19 in skin aging lack clinical validation. Consumers should be cautious: such genetic markers are not established predictors of skin aging. Proven interventions—sunscreen, antioxidants, retinoids, and a healthy diet—are far more impactful. The evidence level is unclear/mechanistic at best.","area":"gesundheit","canonical_id":"gesundheit:canonical-c5410cb3a23c669daf7b07c7","id":"public-6dc50133e265f6d2d0ae1be8","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: CYP2C19 in the context of skin aging","score":29.55284347,"snippet":"CYP2C19 is a cytochrome P450 enzyme primarily involved in drug metabolism (e.g., clopidogrel, proton pump inhibitors). There is no robust scientific evidence directly linking CYP2C19 genetic variants to skin aging. Skin aging is driven by UV exposure, oxidative stress, collagen degradation, hormonal changes, and lifestyle factors. While CYP2C19 could theoretically influence the metabolism of endogenous compounds or environmental toxins that affect skin, this remains speculative and mechanistic. Direct-to-consumer tests claiming a role for CYP2C19 in skin aging lack clinical validation. Consumers should be cautious: such genetic markers are not established predictors of skin aging. Proven int","sources":[],"title":"Evidence check: CYP2C19 in the context of skin aging","url":"https://tikki.wiki/wissen/gesundheit/frage/public-6dc50133e265f6d2d0ae1be8/evidence-check-cyp2c19-in-the-context-of-skin-aging/","verification":{"claim_support_verified":false,"human_reviewed":false,"quote_exact_match":false,"source_identity_verified":false,"tier":"existing_native_answer_privacy_screened_sources_pending"}},{"answer":"The provided context does not contain specific information on estradiol and skin aging. In general, estradiol (the primary form of estrogen) plays a key role in skin health: it promotes collagen synthesis, maintains skin thickness and hydration, and supports wound healing. With menopause, estradiol levels drop significantly, which is associated with accelerated skin aging (wrinkling, loss of elasticity, dryness). Clinical studies indicate that hormone replacement therapy (HRT) can partially reverse these effects, but the evidence is not uniform and depends on dosage, duration, and individual genetics. Importantly, measuring estradiol alone in blood or saliva without medical interpretation is insufficient for assessing skin aging risk. The provided context (including entries on lactase persistence, CYP2C19, and cortisol) is not relevant to this question. Therefore, the evidence is rated as human-moderate, based on general medical knowledge rather than the supplied sources.","area":"gesundheit","canonical_id":"gesundheit:canonical-2600cf8bcb2f3272978230be","id":"public-e86eb28879ec9287428432ff","kind":"qa","language":"en","publication_status":"existing_native_answer_privacy_screened_sources_pending","question":"Evidence check: Östradiol in the context of skin aging","score":26.92096537,"snippet":"The provided context does not contain specific information on estradiol and skin aging. In general, estradiol (the primary form of estrogen) plays a key role in skin health: it promotes collagen synthesis, maintains skin thickness and hydration, and supports wound healing. With menopause, estradiol levels drop significantly, which is associated with accelerated skin aging (wrinkling, loss of elasticity, dryness). Clinical studies indicate that hormone replacement therapy (HRT) can partially reverse these effects, but the evidence is not uniform and depends on dosage, duration, and individual genetics. Importantly, measuring estradiol alone in blood or saliva without medical interpretation is","sources":[],"title":"Evidence check: Östradiol in the context of skin aging","url":"https://tikki.wiki/wissen/gesundheit/frage/public-e86eb28879ec9287428432ff/evidence-check-oestradiol-in-the-context-of-skin-aging/","verification":{"claim_support_verified":false,"human_reviewed":false,"quote_exact_match":false,"source_identity_verified":false,"tier":"existing_native_answer_privacy_screened_sources_pending"}}],"schema_version":"tikki.search-response.v1"}