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Phytomicrographs of skin after 8 hours of skin permeation (tenfold optical zoom).
Notes: Untreated skin (A); skin treated with LP20 (B), LP80 (C), SP80 (D), and SP20 (E) nanoemulsions.
Abbreviations: LP20, soybean lecithin and polysorbate 20; LP80, soybean lecithin and polysorbate 80; SP20, sorbitan monooleate and polysorbate 20; SP80, sorbitan monooleate and polysorbate 80.
