148 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS 7B • 7C • Figure 7. Continued. B: SPF-16 sunscreen. Loss of affinity for the stain beneath a squamous cell carcinoma in situ (*). C: SPF-18 sunscreen. Pale subepidermal deposits ( •,- ) are shown to be GAGs when Mowry's stain is used.
BROAD-SPECTRUM SUNSCREENS 149 Figure 8. 16 MPD: Glycosaminoglycans. Mowry's stain (magnification)230). A: SPF-7 sunscreen. Blue-staining GAGs are considerably increased compared to those seen with 10 MPDs. Some collagen bundles have a bluish tone (-•). B: SPF-16 sunscreen. GAGs are as abundant as with the SPF-7 sunscreen.
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