Skincare, supplement, and personal care prices vary widely between the manufacturer’s site, marketplaces, and specialty retailers like iHerb. This category compares active offers across those channels for the same or equivalent products, factoring in cashback and points-based rewards where the retailer offers them. Because supplement and cosmetic pricing changes often with subscribe-and-save programs and bundle deals, listings note whether the discount applies to a one-time purchase or requires a subscription.