Short brand abbreviations cover several sunscreen lines, so start by confirming the full brand name printed on the tube in the listing photos.
- Check the SPF number and whether the label says broad spectrum, which covers UVA as well as UVB.
- Note the filter type, since mineral zinc oxide formulas leave more cast than chemical filters on deeper skin tones.
- Look at the finish description, because dewy and matte versions of the same SPF behave very differently under makeup.
Sunscreen also has a shelf life, so verify the seller shows a batch code or expiration marking.