Beauty deals are among the few Amazon Prime Day sales that are great nearly across the board. Whereas some tech products are only on sale because they're old, or the deals are the same you can find year-round, the beauty deals we've spotted are almost always on new and trendy products or classics we wouldn't want to go without. We do test a lot of tech professionally, but we apply that same testing protocol to the beauty products we use in our everyday lives. Here are some deals on our tried-and-tested favorites. Updated 12:30 pm ET Friday, June 26: We've added new deals from Native, Jukebox, Shark, L'Oreal Professionnel, and BaBylissPro, removed items no longer on sale, and ensured prices and links are up to date throughout. This is the best budget hair straightener I have ever tested, performing as well on my 3a curly hair as flat irons five times the price. This Prime Day deal is not the most dramatic discount, but you won't find a better straightener for under 30 bucks. The...
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