Warmer, sunnier weather is here and summer is fast approaching. For millions of people, the urge to play or simply recline in the sunshine is too powerful to ignore. While slathering on high-SPF sunscreen is now a habit for most, these products don’t nourish the skin to keep it youthful, supple and hydrated .
The sun has two opposing sides: it’s beneficial because it stimulates the production of vitamin D, yet it can be harmful, as it accelerates skin aging and degradation , causing lasting and irreversible damage. The idea of ingesting nutraceuticals to reduce damage from sun exposure (chiefly, photoaging) is gaining increasing scientific support, and consumers are interested as they understand the “beauty from within” concept.
A Skin Primer
As the body’s largest organ, the skin performs several critical functions that support overall health. It acts as a barrier against environmental elements that can cause damage or illness if absorbed, while also preventing excessive water loss. In addition, it helps maintain normal body temperature through thermoregulation. The skin is also involved in immune surveillance as well as hormone activity.
The skin consists of two main layers: the dermal (inner layer), which provides elasticity and tensile strength and supplies nutrients to the epidermis (outer layer), and the epidermis, which serves as the primary protective barrier.
Compared to the skin on the rest of the body, facial skin is thinner and contains more sebaceous glands. It also has a faster cell turnover rate and is more frequently exposed (along with hands) to environmental factors. This increased exposure makes facial skin particularly vulnerable to sun damage.
What is Photoaging?
The sun emits three types of ultraviolet radiation (“rays”), UVA, UVB, and UVC. Approximately 95% of the UV radiation that reaches the earth consists of UVA rays, which are the most damaging to skin as they penetrate deeply into the dermis. While UVB rays do not penetrate as deeply, they are responsible for sunburn, contribute to skin cancers, and damage the skin’s DNA. UVC rays do not reach the Earth’s surface.
Photoaging refers to the visible skin aging caused by excessive sun exposure and is responsible for up to 90% of visual skin aging through several mechanisms.
When the sun’s rays hit the skin, it responds by activating melanocytes, which produce melanin (a brown pigment). The melanin can accumulate and form uneven, unsightly spots. In some individuals, sun exposure can also damage capillaries in the face, leading to a reddish, ruddy appearance. Additionally, sun exposure disrupts the skin barrier, resulting in roughness and, over time, a leathery texture.
Ultraviolet radiation accelerates photoaging by activating three major oxidative stress pathways: the epidermal growth factor receptor-mitogen-activated protein kinase cascade, nuclear factor kappa B (NF- κB)-mediated inflammation, and the nuclear factor erythroid 2-related factor 2(Nrf2)/antioxidant response element pathway.
Structurally, UVA radiation degrades collagen and elastin, leading to sagging and wrinkle formation due to loss of elasticity and firmness. In addition, DNA damage from prolonged sun exposure contributes to the accumulation of damaged elastin and matrix metalloproteinases (MMPs), further impairing skin integrity.
Two supplements – turmeric and vitamin C- can help nourish the skin and protect against the effects of photoaging caused by prolonged sun exposure.
Turmeric
The culinary herb, turmeric (Curcuma longa), is widely known for its anti-inflammatory antioxidant properties; this dual action helps protect skin when exposed to ultraviolet rays. A 2025 literature review examining turmeric’s effects on photoaging highlights several additional mechanisms of action, including regulation of matrix metalloproteinases (MMPs), modulation of autophagy, regulation of apoptosis, and reduction of melanogenesis. The authors concluded, “curcumin emerges as a potent anti-photoaging agent through its multifaceted mechanisms targeting oxidative stress, inflammation, and cellular repair processes.”
An earlier review evaluated studies involving ingestible (supplement) turmeric, topical turmeric applications, and combinations of both across several skin conditions, including facial photoaging. The researchers observed that turmeric, when ingested or applied topically, appeared to exert therapeutic effects for skin health.
TurmXTRA™ glow is a unique low-dose, water-dispersible turmeric extract standardized to 60% natural curcuminoids. It has recently been shown to provide skin health benefits that may support a sun-protection regimen.
A recent study involving 96 women compared daily supplementation with a 250 mg dose of TurmXTRA™ glow to a placebo over two months, assessing multiple parameters of skin health and appearance.
Five key results were observed in the TurmXTRA™ supplementation group:
1. Improved Facial Skin Hydration: Participants taking TurmXTRA™ glow demonstrated significantly improved facial hydration levels compared to the placebo group.
2. Enhanced Skin Glow: Participants in the TurmXTRA™ glow group reported increased facial radiance and overall glow, as measured by advanced imaging tools such as the Skin GlossMeter.
3. Reduction in Blemishes and Dark Spots: TurmXTRA™ glow supplementation resulted in statistically significant reductions in facial blemishes and dark spots compared to baseline and placebo.
4. More Even Skin Tone: Participants in the treatment group experienced a more even skin tone and softer, smoother skin texture by the end of the study.
5. Reduced Trans-Epidermal Water Loss (TEWL): Improvements in TEWL measurements indicated enhanced skin barrier function and resilience.
Vitamin C
Vitamin C has been extensively studied for its role in supporting skin health, particularly in protecting against photoaging. The epidermis naturally contains high concentrations of vitamin C, which provides antioxidant protection against UV-induced damage. Vitamin C also supports the skin by acting as a cofactor for collagen hydroxylase enzymes, thereby promoting collagen synthesis. Additionally, vitamin C derivatives are shown to reduce melanin synthesis.
C-Fence™, while not directly studied for skin health, provides sustained, all-day antioxidant support. A pharmacokinetic study demonstrated the sustained bioavailability of a single 500 mg dose of C-Fence. Results showed that Vitamin C levels in 18 participants remained well above baseline throughout the 24-hour study period. Furthermore, the average time to reach peak plasma concentration was approximately 4.5 hours, nearly double that of most immediate-release vitamin C supplements.
Conclusion
Adults and children alike look forward to having fun in the sun, playing, gardening, swimming, and walking. While sunshine can be relaxing and mood-lifting, protecting against its effects on the skin requires simple precautions, such as applying SPF 30 sunscreen, wearing hats, staying well hydrated, and supplementing with skin-nourishing ingredients like turmeric (TurmXTRA™) and vitamin C (C-Fence™).
Reviewed by Sneha Sawant Desai, PhD
