Protocol · Skin, Hair & Nails
Polymorphous Light Eruption (Sun Allergy) Supportive Care Protocol
Beta-Carotene and Vitamin D are the core of this stack, with 6 supporting supplements. Each row gives the amount the protocol lists and the grade our evidence database holds for that supplement in Polymorphous Light Eruption (Sun Allergy) Supportive Care.
We are re-verifying the studies cited on protocol pages; only confirmed citations are shown.
The stack
8 supplements · none graded yet
| Grade | Supplement | Amount listed | Why it’s in the stack | Evidence on file | Shop |
|---|---|---|---|---|---|
| Primary stackThe core of this protocol | |||||
| Beta-Carotene | Amount listed: 25–50 mg (40,000–80,000 IU) daily, starting 4–6 weeks before sun exposure | Carotenoid antioxidant that may protect against UV-induced skin damage; mixed but some positive results for PLE | Not graded yet | ||
| Vitamin D | Amount listed: 2,000–4,000 IU daily | Immunomodulatory effects; patients with PLE often deficient due to sun avoidance | Not graded yet | ||
| Supporting stackListed as additions to the core | |||||
| Nicotinamide (Vitamin B3) | Amount listed: 500 mg twice daily | Enhances cellular energy; may protect against UV-induced immunosuppression | Not graded yet | ||
| Omega-3 Fatty Acids | Amount listed: 2–3 g EPA+DHA daily | Anti-inflammatory effects may reduce UV-induced skin inflammation | Not graded yet | ||
| Polypodium Leucotomos (Heliocare) | Amount listed: 240–480 mg twice daily, starting before sun exposure | Fern extract with photoprotective and anti-inflammatory properties; studied for PLE | Not graded yet | ||
| Vitamin E | Amount listed: 400 IU daily | Antioxidant that may protect skin from UV damage when combined with vitamin C | Not graded yet | ||
| Vitamin C | Amount listed: 1,000–2,000 mg daily | Antioxidant that works synergistically with vitamin E for photoprotection | Not graded yet | ||
| Green Tea Extract | Amount listed: 500–1,000 mg standardized extract daily | Polyphenols (EGCG) provide antioxidant and anti-inflammatory photoprotection | Not graded yet | ||
Shop the evidence-backed picks
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How this protocol works
In plain language
Polymorphous Light Eruption (PLE), often called 'sun allergy,' is a common condition where the skin develops an itchy rash after sun exposure. It typically appears hours to days after being in the sun, especially in spring or early summer when skin isn't used to UV light. The rash can look like small red bumps, blisters, or patches, and usually occurs on sun-exposed areas like the chest, arms, and neck. PLE tends to improve as summer progresses (a phenomenon called 'hardening'). It affects up to 10-20% of the population, more commonly in women and those with fair skin.
CRITICAL: PLE is usually diagnosed clinically based on history and appearance. Other photosensitivity conditions (lupus, drug-induced photosensitivity, other photodermatoses) should be ruled out. First-line management includes sun avoidance, protective clothing, and broad-spectrum sunscreen (SPF 30+). For severe cases, dermatologists may recommend phototherapy ('hardening' treatments), topical steroids for flares, or rarely, antimalarials or immunosuppressants. These supplements may provide additional photoprotection but don't replace sun protection measures.
Beta-Carotene* is a carotenoid antioxidant that accumulates in the skin and may provide some UV protection. Studies for PLE show mixed but some positive results. Requires 4-6 weeks of loading before sun exposure.
Vitamin D* is important because PLE patients often become deficient due to sun avoidance. Maintaining levels supports immune function.
Nicotinamide (Vitamin B3)* has been shown to reduce UV-induced immunosuppression and skin damage. Studies show photoprotective benefits.
Omega-3 Fatty Acids* have anti-inflammatory effects that may reduce the inflammatory response to UV.
Polypodium Leucotomos* (Heliocare) is a fern extract with specific evidence for PLE and other photodermatoses. It provides antioxidant and anti-inflammatory photoprotection.
Vitamins C and E* work synergistically as antioxidants to reduce UV-induced skin damage.
Green Tea Extract* polyphenols provide additional antioxidant photoprotection.
Expected timeline: Start supplements 4-6 weeks before expected sun exposure. Gradual sun exposure through the season often leads to 'hardening' where symptoms improve naturally.