136 JOURNAL OF COSMETIC SCIENCE
Figure 3. DTG curves of AVB and its binary mixtures 1:1 (m/m) with lipid-based excipients: (A) solid lipids,
(B) liquid lipids, and (C) surfactants. Samples were analyzed under a nitrogen atmosphere (50 mL/min−1),
heating rate of 1°C/min−1, and temperature range of 25–500 °C.

137 ImprovedPROVED AVB PhotostabilityOTOSTABILITY UsingING NLCs
Figure 4. FTIR spectrum of avobenzone (AVB) and its binary mixtures 1:1 (m/m) with lipid-based excipients:
(A) solid lipids, (B) liquid lipids and (C) surfactants. Spectra were recorded in a Varian 640-IR FTIR (Varian
Inc., Brazil) at wavelengths 4000-600 cm−1 with a resolution of 4 cm−1, using an ATR.

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