Soleil Derm — Expert Insights
Do Sun Protection Supplements Actually Work?
By the Soleil Derm Clinical Team · Evidence-Based · Dermatologist Reviewed
The question lands in our inbox constantly: can you really protect your skin from sun damage by taking a supplement? The short answer is yes — but the details matter enormously.
Sunscreen remains the cornerstone of any serious photoprotection routine, and no supplement replaces it. But a growing body of peer-reviewed clinical evidence shows that two specific compounds — nicotinamide and Polypodium leucotomos — work at the cellular level to meaningfully reduce UV-induced damage, lower skin cancer risk, and extend your skin's resilience against solar radiation.
This isn't wellness marketing. These are ingredients studied in randomized controlled trials, validated in real-world patient populations, and recommended by dermatologists. At Soleil Derm, we built our supplement around the science — and the science is compelling.
Understanding the Evidence
How Oral Photoprotection Works
Traditional sunscreen works as a physical or chemical barrier on the skin's surface. Oral photoprotection operates differently — it works systemically, reinforcing your skin's own defenses against UV radiation from within. Think of it as fortifying the walls rather than just building a fence.
When UV rays penetrate the skin, they trigger a cascade of damaging events: DNA strand breaks, oxidative stress, inflammatory cytokine release, and the depletion of Langerhans cells — your skin's immune sentinels. The two most clinically validated oral photoprotective agents target these mechanisms directly.
01
Nicotinamide
Vitamin B3 Derivative · 500 mg
A form of vitamin B3 that enhances cellular DNA repair mechanisms, reduces UV-induced immunosuppression, and has been shown in large-scale studies to significantly reduce the incidence of non-melanoma skin cancers.
02
Polypodium Leucotomos
Tropical Fern Extract · Oral
An aqueous extract of a Central American fern with potent antioxidant and anti-inflammatory properties. Multiple clinical trials confirm it measurably raises the skin's minimal erythema dose — meaning it takes more UV exposure to cause damage.
The Clinical Data
What the Research Actually Shows
Nicotinamide: The Skin Cancer Prevention Evidence
The conversation around nicotinamide shifted significantly in 2015, when a landmark 386-person randomized controlled trial demonstrated that patients taking 500 mg of nicotinamide twice daily developed fewer new skin cancers than those in the placebo group. Dermatologists began incorporating it into prevention protocols for high-risk patients.
The challenge was that nicotinamide is available over the counter, making it difficult to capture in medical records and study at population scale — until researchers at Vanderbilt University Medical Center found a novel solution.
Key Study — JAMA Dermatology, September 2025
Using the VA Corporate Data Warehouse, Vanderbilt researchers analyzed outcomes for 33,833 patients. The results: an overall 14% reduction in skin cancer risk — rising to a 54% risk reduction when nicotinamide was initiated after a first skin cancer diagnosis.
Lee Wheless, MD, PhD et al. — Vanderbilt University Medical Center. JAMA Dermatology, September 17, 2025. Read the study →
What makes this study particularly significant is scale. This is not a small pilot — it's nearly 34,000 patients. The data validates what dermatologists had observed clinically for a decade, and it shifts the conversation about when to start nicotinamide: earlier treatment initiation yields substantially better outcomes.
54%
Reduction in skin cancer risk with nicotinamide
initiated after a first skin cancer diagnosis
JAMA Dermatology — Vanderbilt University Medical Center, 2025 · n = 33,833 patients
"These results would really shift our practice from starting nicotinamide once patients have developed numerous skin cancers to starting it earlier."Dr. Lee Wheless, MD, PhD — Vanderbilt University Medical Center · JAMA Dermatology 2025
Polypodium Leucotomos: Raising Your Skin's UV Threshold
Polypodium leucotomos extract (PLE) works through a different but complementary mechanism. Rather than primarily targeting DNA repair pathways like nicotinamide, PLE functions as a systemic antioxidant — neutralizing reactive oxygen species generated by UV exposure before they can trigger inflammatory cascades and cellular damage.
Its active constituents — caffeic acid and ferulic acid — intercept UV-induced inflammation, prevent Langerhans cell depletion, and measurably raise the minimal erythema dose (MED): the UV threshold at which your skin begins to burn.
Double-Blind, Placebo-Controlled Trial
In a rigorous randomized controlled study of 40 participants, those taking oral PLE experienced a significant reduction in UV-induced erythema intensity, a measurable increase in minimal erythema dose, and a significantly lower incidence of sunburn over a two-month period compared to placebo.
Published in Journal of Clinical and Aesthetic Dermatology, 2015. Dr. Brian Berman, South Beach Symposium.
A 2025 randomized, double-blind, placebo-controlled trial published in Nutrients evaluated an 8-week supplementation protocol with PLE in 54 fair-skinned participants. After two months, the treatment group showed statistically significant increases in minimal erythema dose and reductions in UV-induced erythema.
Clinical Mechanism — Langerhans Cell Preservation
Multiple studies confirm that PLE helps preserve Langerhans cells — the immune surveillance cells in the skin that UV radiation depletes. This matters not only for photoprotection but for maintaining the skin's immune defense against malignant cell changes.
Parrado C, Nicolas J, Juarranz A, Gonzalez S. Photochemical & Photobiological Sciences, 2020.
A 2022 systematic review synthesizing 79 publications concluded that PLE demonstrates clinically meaningful antioxidant and photoprotective properties suitable for use as a systemic sunscreen adjunct.
The Soleil Derm Formulation
Why We Built Ombre Around These Two Ingredients
When our dermatologists formulated Ombre, the question was not whether to include nicotinamide and Polypodium leucotomos — the evidence made that straightforward. The question was dosage and delivery: how do we ensure each capsule delivers what the clinical trials used?
Ombre contains 500 mg of nicotinamide — the exact dose used in the landmark studies — alongside a clinically dosed Polypodium leucotomos extract. These aren't trace inclusions; they're therapeutic doses formulated to work together, providing complementary protection across the key UV damage pathways.
Soleil Derm
Ombre
Sun Protection Supplement · Dermatologist Formulated
500 mg of nicotinamide and clinically-dosed Polypodium leucotomos extract — every ingredient chosen for evidence, every dose calibrated to the research.
Shop Ombre View IngredientsComing June 2025
Sun Protection, Reimagined as a Gummy
The same clinical-grade actives. A new format designed for daily compliance — because the best supplement is the one you actually take.
Important Context
What Supplements Can — and Cannot — Do
Clinical accuracy requires us to be direct: no supplement replaces topical sunscreen. SPF remains non-negotiable. What oral photoprotection provides is a complementary, inside-out layer of defense — meaningful risk reduction, not complete protection.
The Dermatologist-Recommended Protocol
Layer 1 — Oral. Nicotinamide and PLE daily, building systemic UV resilience and supporting cellular DNA repair.
Layer 2 — Topical. Broad-spectrum SPF 30+ applied 15–30 minutes before sun exposure, reapplied every two hours.
Layer 3 — Behavioral. Protective clothing, shade-seeking during peak hours (10am–4pm), and annual dermatology check-ins for high-risk individuals.
Common Questions
Frequently Asked
How long does it take for oral photoprotection to work?
Both nicotinamide and PLE require consistent daily use to build their protective effect. PLE studies show statistically significant results after 8 weeks of daily supplementation. Nicotinamide's DNA repair benefits accrue over time — beginning supplementation earlier in life confers greater cumulative benefit.
Who benefits most from sun protection supplements?
The clinical evidence is strongest for individuals with a prior history of non-melanoma skin cancer, fair-skinned individuals (Fitzpatrick phototypes I–III), and those on immunosuppressive medications. That said, many dermatologists now recommend nicotinamide broadly for adult patients concerned about photoaging and skin cancer prevention.
Is nicotinamide the same as niacin?
No — and the distinction matters clinically. Nicotinamide and niacin are both forms of vitamin B3, but they have different effects. Nicotinamide does not cause the skin flushing associated with high-dose niacin, and it is the form used in all skin cancer prevention studies. Ombre uses nicotinamide specifically.
Can I take Ombre with my other skincare supplements?
Nicotinamide and Polypodium leucotomos have well-established safety profiles with no known interactions with common skincare supplements such as vitamin C, collagen peptides, or astaxanthin. As with any supplement regimen, we recommend discussing with your physician or dermatologist.
What's the difference between Ombre and the upcoming gummy?
Both formulations deliver the same clinically active ingredients at the same therapeutic doses. The gummy format, launching in June, is designed for those who prefer a more enjoyable daily ritual. For patients focused on precision dosing, the Ombre capsule remains an excellent choice.
The Bottom Line
The science is clear, the mechanisms are understood, and the clinical trials are large-scale and rigorous. Nicotinamide and Polypodium leucotomos are not wellness trends — they are evidence-based tools for meaningful skin cancer risk reduction.
At Soleil Derm, everything we formulate begins and ends with the research.
Shop Ombre Gummy Waitlist →
Medical Disclaimer: This content is for educational purposes and does not constitute medical advice. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your dermatologist or physician before beginning any new supplement regimen.
Sources: Wheless et al., JAMA Dermatology, September 2025 — Vanderbilt Health News · Lim et al., NEJM 2015 · Berman et al., JCAD 2015 · MDPI Nutrients April 2025 · PMC systematic review of 79 PLE publications, 2022.
