ArticlePhotochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology2026
Properties of Aspalathus linearis extracts as sunscreen agents in combination with standard UV filters.
Article in Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- What's New in Photoprotection?American journal of clinical dermatology · 2026Review
- Potential Value of a Combination ofPharmaceuticals (Basel, Switzerland) · 2026Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The new horizons in sunscreen development are based on the discovery of novel active ingredients, and those from natural sources are the most promising. The objective of the work was to analyze the potential of different Aspalathus linearis (AL) extracts as natural photoprotective ingredients to be used in combination with standard UV filters in topical formulas. The impact of AL extracts on different biological protection factors, as well as on the photostability of standard organic UV filters, was measured. Under this aim, and employing in vitro techniques, UV transmittance properties, solar protection factor, UVA protection factor, and immune protection factor were analyzed for the extracts formulated alone or in combination with the UVB and UVA standard filters Octyl-methoxy-cinnamate (OMC) and Butyl-Methoxy-dibenzoyl-methane (BMDBM). Water containing AL extracts showed a significant UV absorbance in the entire UV spectrum with an absorption peak around 285 nm. The addition of AL extracts to sunscreen galenic formulas, including OMC and BMDBM, increased the protection factors up to 50%. AL extracts were also able to protect BMDBM and OMC against photodegradation under increasing radiation doses up to 14.4 standard erythemal doses. In conclusion, the addition of AL extracts in topical photoprotective formulas provides the double benefit of increasing the protection values against different biological effects, as well as improving photostability. Thus, these natural extracts appear as valuable candidates for the development of safer and more efficient sunscreens.
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