Gloria Lu emphasizes that occlusives like petrolatum, lanolin, shea butter, and ceramides are beneficial in lip balms, sealing moisture and combating dryness.
Fu notes the importance of SPF for lip protection, explaining that lips lack melanin, making them more vulnerable to UV damage, leading to burning and peeling.
Fu warns about the trial and error involved with SPF lip balms, highlighting the potential downsides of both mineral and chemical filters in products.
Both Lu and Prather discuss problematic ingredients in lip balms, particularly lanolin and minty formulations that can result in irritation or adverse reactions.
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