PAG LABS Research Library
Evidence-first explainers on skin aging, photoaging, collagen, cellular senescence, NAD+ biology, quercetin and resveratrol. Human outcomes, biomarkers, mechanisms and preclinical evidence are labeled separately.
Sep 08, 2026
Photoaging and intrinsic aging overlap, but they are not the same process. Learn how UV exposure changes collagen, pigmentation and skin structure—...
Read research note →
Jun 06, 2026
Creams are not useless and oral supplements are not automatically deeper. Compare sunscreen, retinoids, moisturizers and oral interventions by rout...
Read research note →
Jun 06, 2026
Prevention and correction are not “Asian vs Western” biology. This guide compares photoprotection, barrier care, retinoids and procedures without c...
Read research note →
Jun 06, 2026
There is no universal 90-day collagen clock. This guide explains why skin remodeling is slow, how trial timelines vary and what a 90-day supplement...
Read research note →
Jun 06, 2026
The 500 Dalton rule is a useful skin-penetration heuristic—not proof that creams do not work. Here is what molecular size, formulation and clinical...
Read research note →
Jun 06, 2026
An evidence-first guide to wrinkles: UV protection, retinoids, lifestyle, collagen research and what supplements can—and cannot—claim.
Read research note →Research before product
500 mg NAD+, 250 mg quercetin dihydrate extract and 150 mg Japanese knotweed extract standardized to 98% resveratrol per 2-capsule serving.
View exact-label product page