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Condition

Photodermatoses

Photodermatoses are skin conditions in which light, usually sunlight, triggers or worsens a reaction, from common polymorphous light eruption to rare inherited disorders. The evidence is strongest for afamelanotide, with trials in erythropoietic protoporphyria finding people gained much more pain-free time in sunlight, and for nicotinamide, which helps cells repair UV damage. Beta-carotene and fern extract have moderate support, but the afamelanotide results apply to that one rare condition.

Sources: PMID 26132941; PMID 26979527

Supplements studied
1
Medicines and peptides
1
Graded outcomes
3
Trials
1
People studied
57

Evidence by supplement

  • Strong
  • Moderate
  • Limited
  • Very limited

1 supplement

Phlebodium aureum: outcomes studied for Photodermatoses
GradeOutcomeEffectSizeStudiesPeopleStudies list
Polymorphic Light EruptionsImproves (the measure goes up)3 studies57 people

Prescription medicines and peptides studied, for context

These are not supplements. Most need a prescription, and some are research compounds with no approved use. They are listed so the supplement evidence above can be read against them.

1 medicine or peptide

Afamelanotide

  • Pain-Free Sun Exposure Time: changes; see studies
  • Quality of Life (EPP): improves
  • Phototoxic Reactions: improves
Afamelanotide: outcomes studied for Photodermatoses
GradeOutcomeEffectSizeStudiesPeopleStudies list
Pain-Free Sun Exposure Time

69.4 vs 40.8 hours median (US trial); 6.0 vs 0.8 hours (EU trial)

Changes; see studiesLarge effect10 studies
Quality of Life (EPP)

Improved outdoor activity participation

Improves (the measure goes up)Moderate effect10 studies
Phototoxic Reactions

77 vs 146 reactions over 9 months treatment

Improves (the measure goes down)Large effect3 studies

Key findings

  • Pain-Free Sun Exposure TimeAfamelanotideChanges; see studies
  • Quality of Life (EPP)AfamelanotideImproves (the measure goes up)
  • Phototoxic ReactionsAfamelanotideImproves (the measure goes down)

The Photodermatoses (Sun Sensitivity) Support protocol

2 primary supplements · 4 supporting supplements

See the full protocol

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Studies cited

35 studies from PubMed

  1. German Cohort Observational Study to Investigate the Short- and Long-Term Safety and Clinical Effectiveness of Afamelanotide 16 mg (SCENESSE) in Patients With Erythropoietic Protoporphyria (EPP)Br J Dermatol, 2025 · PMID 40082741
  2. Afamelanotide in managing cutaneous phototoxicity in erythropoietic protoporphyria: a Scottish perspective.Clinical and experimental dermatology, 2025 · PMID 40692281
  3. Treatment Advances in Vitiligo: An Updated Review.Dermatology practical & conceptual, 2025 · PMID 40117616
  4. Afamelanotide in protoporphyria and other skin diseases: a reviewExpert Opin Orphan Drugs, 2024 · PMID 38715490
  5. Bridging Molecular Mechanism and Clinical Practice in Vitiligo Treatment: An Updated Review.Dermatology (Basel, Switzerland), 2024 · PMID 38417409
  6. A systematic review of case series and clinical trials investigating systemic oral or injectable therapies for the treatment of vitiligo.Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI), 2024 · PMID 38454597
  7. Afamelanotide in protoporphyria and other skin diseases: a review.Postepy dermatologii i alergologii, 2024 · PMID 38784937
  8. A feasibility and safety study of afamelanotide in acute stroke patients - an open label, proof of concept, phase iia clinical trial.BMC neurology, 2023 · PMID 37496004
  9. Afamelanotide Is Associated with Dose-Dependent Protective Effect from Liver Damage Related to Erythropoietic Protoporphyria.Life (Basel, Switzerland), 2023 · PMID 37109595
  10. Afamelanotide for prevention of phototoxicity in erythropoietic protoporphyriaExpert Rev Clin Pharmacol, 2021 · PMID 33486349
  11. Afamelanotide for prevention of phototoxicity in erythropoietic protoporphyria.Expert review of clinical pharmacology, 2021 · PMID 33507118
  12. Immunopathogenesis and management of polymorphic light eruption.Dermatologic therapy, 2021 · PMID 34676645
  13. Beyond pigmentation: signs of liver protection during afamelanotide treatment in Swiss patients with erythropoietic protoporphyria, an observational study.Therapeutic advances in rare disease, 2021 · PMID 37181106
  14. Afamelanotide in combination with NB-UVB for treatment of vitiligo in an Asian populationJ Dermatol Treat, 2020 · PMID 32498495
  15. Current and innovative emerging therapies for porphyrias with hepatic involvement.Journal of hepatology, 2019 · PMID 31102718
  16. Risks of unregulated use of alpha-melanocyte-stimulating hormone analogues: a review.International journal of dermatology, 2017 · PMID 28266027
  17. Afamelanotide: A Review in Erythropoietic ProtoporphyriaAm J Clin Dermatol, 2016 · PMID 26979527
  18. Afamelanotide for Erythropoietic ProtoporphyriaN Engl J Med, 2015 · PMID 26132941
  19. Afamelanotide and narrowband UV-B phototherapy for the treatment of vitiligo: a randomized multicenter trialJAMA Dermatol, 2015 · PMID 25230094
  20. Afamelanotide (CUV1647) in dermal phototoxicity of erythropoietic protoporphyria.Expert review of clinical pharmacology, 2015 · PMID 25470471
  21. Evaluation of the immunogenicity of the synthetic α-melanocyte-stimulating hormone (α-MSH) analogue afamelanotide ([Nle4-D-Phe7]-α-MSH, Scenesse®) in erythropoietic protoporphyria patients by ELISA detecting both anti-afamelanotide and anti-α-MSH antibodies.Skin pharmacology and physiology, 2015 · PMID 25402764
  22. Afamelanotide: first-in-class melanocortin 1 receptor agonistExp Dermatol, 2014 · PMID 24854299
  23. A bioassay for the detection of neutralizing antibodies against the α-melanocyte stimulating hormone analog afamelanotide in patients with erythropoietic protoporphyriaJ Pharm Biomed Anal, 2013 · PMID 23277150
  24. A review and update on melanocyte stimulating hormone therapy: afamelanotide.Journal of drugs in dermatology : JDD, 2013 · PMID 23884489
  25. A one-year open-label safety study of afamelanotide in erythropoietic protoporphyriaBr J Dermatol, 2012 · PMID 22762766
  26. Afamelanotide, an agonistic analog of α-melanocyte-stimulating hormone, in dermal phototoxicity of erythropoietic protoporphyria.Expert opinion on investigational drugs, 2010 · PMID 21073357
  27. A randomized double-blind vehicle-controlled study to assess the safety and efficacy of afamelanotide in the treatment of vitiligoArch Dermatol, 2009 · PMID 19220089
  28. An open-label, dose-escalation study of afamelanotide in erythropoietic protoporphyriaBr J Dermatol, 2009 · PMID 20337532
  29. Oral polypodium leucotomos extract photoprotective activity in 57 patients with idiopathic photodermatosesG Ital Dermatol Venereol · PMID 21505393
  30. Double-blind, randomized, placebo-controlled pilot study with anapsos in senile dementia: effects on cognition, brain bioelectrical activity and cerebral hemodynamicsMethods Find Exp Clin Pharmacol · PMID 11196347
  31. Treatment of vitiligo vulgaris with narrow-band UVB and oral Polypodium leucotomos extract: a randomized double-blind placebo-controlled studyJ Eur Acad Dermatol Venereol · PMID 17659004
  32. Photoprotective activity of oral polypodium leucotomos extract in 25 patients with idiopathic photodermatosesPhotodermatol Photoimmunol Photomed · PMID 17254039
  33. Oral Polypodium leucotomos extract decreases ultraviolet-induced damage of human skinJ Am Acad Dermatol · PMID 15583582
  34. A new agent (hydrophilic fraction of polypodium leucotomos) for management of psoriasisInt J Dermatol · PMID 4609374
  35. Oral administration of a hydrophilic extract of Polypodium leucotomos for the prevention of polymorphic light eruptionJ Am Acad Dermatol · PMID 21696853