What Is Resveratrol?
SIRT1, longevity, and its role in Celluragen
This polyphenol, first found in grape skin, has sat at the center of longevity research for decades. Its SIRT1 activation, its link to collagen metabolism, and its place in the Celluragen formulation, backed by academic studies and clinical evidence.
From grape skin
to the longevity lab
Resveratrol is a natural polyphenol that plants produce in response to stress and infection. Since the 1990s it has become one of the most studied molecules in longevity research.
Resveratrol (3,5,4'-trihydroxy-trans-stilbene) is a stilbenoid polyphenol found in small amounts in various foods, most notably red grape skin and red wine, as well as blueberries, pomegranate, and cocoa. Plants produce this compound as a defense mechanism against stressors such as UV radiation, fungal infection, and mechanical damage.
Resveratrol came into scientific focus when researchers discovered its connection to the sirtuin family of proteins. In particular, SIRT1 (Sirtuin-1) is a histone deacetylase enzyme that plays a critical regulatory role in aging processes. Resveratrol is regarded as one of the most potent natural SIRT1 activators identified to date.
Resveratrol has two geometric isomers: cis-resveratrol and trans-resveratrol. Only the trans isomer shows meaningful biological activity. Although the form found in red wine and natural sources is predominantly trans-resveratrol, exposure to light, heat, and long-term storage can convert the trans form into the inactive cis form. For this reason, trans-resveratrol standardization is critical to supplement quality.
"Resveratrol and other sirtuin-activating compounds have been extensively studied for their effects on health and lifespan across various species, including yeast, worms, flies, and humans."
Çevik et al., Frontiers in Genetics, 2024 [1]How does resveratrol work?
From SIRT1 to collagen metabolism
Resveratrol's biological effects occur through multiple cellular signaling pathways, chief among them SIRT1.
SIRT1 is an NAD+-dependent histone deacetylase enzyme. It plays a regulatory role in many processes tied to energy metabolism, the stress response, protein synthesis, DNA damage repair, and inflammation. Research shows that SIRT1 largely mediates the beneficial effects of calorie restriction on health.
Resveratrol's link to collagen metabolism is especially important for skin physiology. Research shows that in UV-induced photoaging, resveratrol supports procollagen I synthesis and reduces the activity of MMP-1 (matrix metalloproteinase-1), the main enzyme that breaks down collagen. These effects are thought to occur through SIRT1 activation and the AMPK pathway.
From cell to human:
the journey of resveratrol research
Resveratrol has an extensive research history stretching from in vitro studies to human clinical trials.
This comprehensive review addresses SIRT1's central role in the sirtuin family and the effects of resveratrol on SIRT1 activation. In yeast, worm, fly, and mouse models, overexpression of SIRT1 homologs has been shown to extend lifespan. The life-extending effects of calorie restriction are proposed to occur through SIRT1, and resveratrol is considered a natural mimetic of this process. Resveratrol influences multiple cellular signaling pathways, including the AMPK, mTOR, and FOXO pathways.
This study examined resveratrol's effects on UV-induced skin aging. When resveratrol was applied to UV-B irradiated fibroblasts, procollagen I content was higher and MMP-1 activity was lower compared with the control group. Resveratrol was reported to act through the MAPK, MAPKK, FOXO3, TGF, and MMP-1 pathways. It was also observed to help prevent declines in elastin, procollagen I, and TGF-β levels.
Hosoda and colleagues gave 28-week-old mice a resveratrol supplement for 32 weeks. Resveratrol prevented the age-related shortening of rotarod time. In skeletal muscle, the increase in atrophic muscle fibers was observed to be attenuated by resveratrol. In heart muscle, age-related cardiomyocyte hypertrophy was reported to decrease. These effects were associated with SIRT1 activation and the restoration of autophagy.
In this randomized, double-blind, placebo-controlled clinical study, healthy women over 40 were given a trans-resveratrol supplement for 8 weeks. Wrinkle score, tactile roughness, and skin appearance measures were used. Experimental models also support that resveratrol promotes procollagen I synthesis and reduces the activity of MMP-1, MMP-3, and MMP-9. As the study was conducted without collagen biomarkers, it emphasized that the reduction in wrinkles may occur through collagen-related mechanisms.
48 healthy adults (aged 55 to 65) were randomized to either a resveratrol supplement or energy restriction. Both interventions significantly raised circulating SIRT1 levels (p < 0.001). In the resveratrol group, a significant change in plasma noradrenaline levels was observed (p = 0.037). Circulating SIRT1 was associated with nitrate-mediated vasodilation. These findings support that resveratrol acts through SIRT1 activation pathways similar to those of calorie restriction.
Resveratrol in Celluragen:
high antioxidant power, holistic formulation
Supported by TÜBİTAK R&D · TEKNOFEST 2025 Gold Medal
In analyses conducted during TÜBİTAK-supported R&D, resveratrol was assessed as one of the active ingredients that stand out for their high antioxidant power. Celluragen was developed by bringing together, in a holistic approach, components that support collagen metabolism. Within this formulation, resveratrol is included for its potential to help protect cells from oxidative stress. Formulated together with 10,000 mg of fish collagen peptides, Ca-AKG, glycine, copper, and vitamin C, Celluragen is Turkey's first biotechnological collagen complex, designed to support collagen metabolism both structurally and protectively.
- Çevik B.A. et al. SIRT1, resveratrol and aging. Frontiers in Genetics, 2024. PMC full text
- Pisanko K. et al. Resveratrol as a factor preventing skin aging and affecting its regeneration. Postepy Dermatol Alergol, 39(3):439-445, 2022. PMC full text
- Hosoda R. et al. Resveratrol, a SIRT1 activator, attenuates aging-associated alterations in skeletal muscle and heart in mice. J Pharmacol Sci, 152(2):112-122, 2023. PubMed
- Trans-resveratrol reduces visible signs of skin ageing in healthy adult females over 40: an 8-week randomized placebo-controlled trial. Frontiers in Aging, 2025. Frontiers
- Gonçalinho G.H.F. et al. Sirtuin 1 and Vascular Function: Randomized Clinical Trial Comparing Resveratrol and Energy Restriction. Nutrients, 15(13):2949, 2023. PubMed
- Baur J.A., Sinclair D.A. Resveratrol and novel potent activators of SIRT1: effects on aging and age-related diseases. Nat Rev Drug Discov, 2008. PubMed
- Pisanko K. et al. Efficacy of resveratrol in wound healing: fibroblast proliferation and collagen-I expression. PubMed, 2020. PubMed
This content is for informational purposes only. Celluragen is a food supplement; it cannot be used to diagnose, treat, or prevent any disease. Supplements cannot replace a balanced and varied diet. Results reported in academic studies of the individual components do not constitute a guarantee of the product's individual effectiveness.