Basado en evidencia Revisiones de suplementos
Every skin claim cited.
We read the skin health studies so you don't have to.
Evidence-based supplement research you can trust. We analyze peer-reviewed clinical studies from PubMed and grade every supplement ingredient on a transparent A–D scale. No sponsored rankings, no manufacturer influence — just science.
Featured Ingredients
Polypodium leucotomos
specialtyTropical fern extract rich in phenolic compounds that reduce UV-induced oxidative stress; inhibits MMP-1 expression; suppresses UV-mediated COX-2 and AP-1 …
Collagen Peptides
collagen_proteinHydrolyzed collagen provides bioactive peptides (primarily Pro-Hyp and Hyp-Gly) that stimulate fibroblast proliferation and upregulate endogenous type I and type …
Hyaluronic Acid
collagen_proteinGlycosaminoglycan that retains up to 1,000x its weight in water, supporting dermal hydration; oral supplementation increases circulating hyaluronic acid fragments …
Vitamin C
vitaminEssential cofactor for prolyl and lysyl hydroxylase enzymes required for collagen cross-linking and stabilization; potent antioxidant that neutralizes UV-generated reactive …
Vitamin E
vitaminFat-soluble antioxidant that accumulates in cell membranes and protects polyunsaturated fatty acids from lipid peroxidation; supports skin barrier function by …
Pine Bark Extract (Pycnogenol)
specialtyStandardized French maritime pine bark extract rich in procyanidins, catechins, and phenolic acids; binds and protects collagen and elastin from …
Top Conditions
Hyperpigmentation
Melasma affects 15-50% of pregnant women; PIH common in darker skin tones (Fitzpatrick IV-VI)
Skin Barrier Function
Impaired in multiple conditions: eczema, psoriasis, rosacea, aged skin, sensitive skin
Hair, Skin & Nails Health
One of the most popular supplement categories; hair/skin/nail supplement market exceeds $2 billion annually
Collagen Loss
Universal age-related process; accelerated in post-menopausal women
Eczema (Atopic Dermatitis)
Affects 15-20% of children and 1-3% of adults worldwide
Psoriasis
Affects 2-3% of the global population; plaque psoriasis accounts for 80-90% of cases
Recent Evidence Updates
6 estudios
8 estudios
20 estudios
5 estudios
12 estudios
Latest Research
Am J Clin Nutr · 1991
Omega-3 fatty acids in health and disease and in growth and development.
J Am Coll Nutr · 2002
Omega-3 fatty acids in inflammation and autoimmune diseases.
Cell · 1981
Regulation of terminal differentiation of cultured human keratinocytes by vitamin A.
Circulation · 2010
OMEGA, a randomized, placebo-controlled trial to test the effect of highly purified omega-3 fatty acids on top of modern guideline-adjusted therapy after myocardial infarction.
Curr Atheroscler Rep · 2004
Omega-3 fatty acids and inflammation.
Nutrients · 2018
Astaxanthin in Skin Health, Repair, and Disease: A Comprehensive Review.
Guides & Resources
Hydration and Skin Health: What the Science Actually Says
The relationship between water intake and skin hydration is one of the most widely discussed yet poorly understood topics in skin health. The popular belief …
lifestyleDiet for Healthy Skin: Evidence-Based Nutrition Strategies
The relationship between diet and skin health is supported by a growing body of epidemiological and clinical evidence. A 2020 systematic review in the Journal …
safetyBiotin Supplements and Lab Test Interference: A Hidden Risk
Biotin (vitamin B7, also known as vitamin H) is one of the most popular supplements for skin, hair, and nail health, available over the counter …
Evidence Grading System
Every supplement claim on this site is graded on an A–D scale based on peer-reviewed clinical research from PubMed. Our algorithm evaluates study design (RCTs rank highest), consistency of results, sample sizes, and the overall body of evidence. No manufacturer sponsorship influences our grades.
Multiple randomized controlled trials (RCTs) or meta-analyses with consistent positive results and large sample sizes.
At least one RCT with mostly consistent results across studies. Evidence suggests benefit but more research may be needed.
Small studies or observational data with some positive signals. Promising but insufficient for strong recommendations.
In vitro studies, case reports, or pilot studies only. Early-stage research that requires clinical validation.
How It Works
Sin anuncios. Sin clasificaciones patrocinadas. Solo ciencia.
Centro de investigación
Buscamos en PubMed cada estudio clínico sobre ingredientes de suplementos.
Extracción
Extraemos los hallazgos clave — tamaños de muestra, tipos de estudio y resultados.
Grados A a F
Evaluamos la evidencia como un boletín escolar — de A (sólida) a F (negativa).
Respuesta clara
Obtenga una respuesta clara en segundos — ¿este suplemento realmente funciona?
Cited Health Network
Explore evidence-based research across multiple health domains.
Evidence-based hair supplement reviews. Every claim backed by peer-reviewed rese
SleepCitedEvidence-based sleep supplement reviews. Every claim backed by peer-reviewed res
GutCitedEvidence-based gut health supplement reviews. Every claim about probiotics, preb
ImmuneCitedEvidence-based immune supplement reviews. Every claim about vitamin C, zinc, eld
BrainCitedEvidence-based brain and cognitive supplement reviews. Every claim about nootrop
WeightCitedEvidence-based weight management supplement reviews. Every claim about green tea
HeartCitedEvidence-based cardiovascular supplement reviews. Every claim about omega-3, CoQ
Aviso legal FDA: Estas declaraciones no han sido evaluadas por la Food and Drug Administration. Los productos y la información en este sitio web no están destinados a diagnosticar, tratar, curar ni prevenir ninguna enfermedad. Las calificaciones de evidencia presentadas se basan en nuestro análisis de investigación publicada revisada por pares y no constituyen consejo médico. Siempre consulte a su profesional de salud antes de comenzar cualquier régimen de suplementos.