Sunscreen products: little-known cosmetic counterfeits

Area of Science:

• Cosmetic Science
• Dermatology
• Analytical Chemistry

Background:

• Counterfeiting of healthcare products, including cosmetics like perfumes and sunscreens, is a widespread global issue.
• While counterfeit perfumes are well-documented, counterfeit sunscreens with inadequate photoprotection present a serious health concern.

Purpose of the Study:

• To evaluate the photoprotective efficacy of counterfeit sunscreen products.
• To determine the presence and quantity of UV filters in suspected counterfeit sunscreens.

Main Methods:

• In vitro determination of sun protection factor (SPF) and protection factor ultraviolet A (PF-UVA).
• High-performance liquid chromatography (HPLC) analysis to quantify UV filters.

Main Results:

• Tested counterfeit sunscreens exhibited SPF and PF-UVA values of 1, indicating no significant photoprotection.
• Analysis revealed the complete absence of UV filters in the examined sunscreen creams.

Conclusions:

• The counterfeit sunscreens tested offer zero protection against harmful ultraviolet radiation.
• Consumers using these products face substantial risks of sun damage and related health consequences due to the lack of essential UV filters.