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—...
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Jun 06, 2026
A technical but readable guide to UV-induced MMP-1, collagen fragmentation and why mechanistic pathways should not be converted into untested suppl...
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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...
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Jun 06, 2026
A direct comparison of oral collagen and NAD+ research, separating visible human skin outcomes from biomarker and mechanistic evidence.
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Jun 06, 2026
A transparent ranking of popular skin-aging supplements by direct human skin evidence—not by mechanism, hype or brand preference.
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Jun 06, 2026
An evidence-first guide to wrinkles: UV protection, retinoids, lifestyle, collagen research and what supplements can—and cannot—claim.
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500 mg NAD+, 250 mg quercetin dihydrate extract and 150 mg Japanese knotweed extract standardized to 98% resveratrol per 2-capsule serving.
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