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Cinnamic acid derivatives in cosmetics: current use and future prospects
A Gunia-Krzyżak1, K Słoczyńska2, J Popiół1
1Faculty of Pharmacy, Department of Bioorganic Chemistry, Chair of Organic Chemistry, Jagiellonian University Medical College, Medyczna 9, Kraków, Poland.
Cinnamic acid derivatives offer diverse cosmetic functions, from perfumery to UV protection, but some pose risks like allergies and estrogenic effects, necessitating concentration limits. Research also explores their potential in skin lightening and anti-aging applications.
Area of Science:
- Cosmetic Science
- Dermatology
- Organic Chemistry
Background:
- Cinnamic acid derivatives are prevalent in cosmetics, encompassing natural and synthetic compounds.
- Their applications range from perfumery and UV protection to antioxidant and antimicrobial activities.
Purpose of the Study:
- To review the functions, properties, and adverse effects of cinnamic acid derivatives in cosmetics.
- To identify potential new cosmetic ingredients from this class of compounds.
Main Methods:
- Literature review and analysis of data from the Cosmetic Ingredient Database (CosIng).
- Evaluation of physicochemical and biological properties, including safety and efficacy data.
Main Results:
- Key derivatives like cinnamaldehyde and cinnamic acid esters are used for fragrance and UV filtering.
- Adverse effects include allergic reactions, phototoxicity, and potential endocrine disruption, leading to usage restrictions.
- Emerging research highlights skin lightening and anti-aging potential for certain derivatives, notably 4-hydroxycinnamic acid.
Conclusions:
- Cinnamic acid derivatives are versatile cosmetic ingredients with established and emerging applications.
- Careful consideration of their safety profiles and regulatory restrictions is crucial for their use in cosmetic formulations.
- Further research may lead to novel cinnamic acid derivatives for advanced skincare benefits.
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