How To Lighten Underarms + Get Rid Of Arm Bumps The Natural Way by How To Lighten Underarms + Get Rid Of Arm Bumps The Natural Way One of my biggest fears about summer is going sleeveless. Because let’s face it, underarms are kind of ugly. And if you have the red upper arm bumps (technically called keratosis pilaris) it’s even worse. So while you’re whipping your biceps into Michelle Obama-shape, here’s a simple at home treatment to make your pits more presentable. 1. Lemon and peroxide are effective natural bleach agents – they work on your clothes and your underarms! Juice from 1/2 lemon 1/8 cup hydrogen peroxide 1/4 cup baking soda or cornmeal Combine ingredients in a lidded jar. After washing, apply scrub to underarms and upper arms (if you have bumps) and rinse. 2. Apple Cider Vinegar Keratosis Pilaris (Arm Bump) Remedy Apple cider vinegar works wonders on red arm bumps. And putting it on your underarms helps correct any pH balance issues caused by using homemade deodorant with baking soda. Combining it with coconut oil soothes irritated skin from frequent shaving. Melt 2 tablespoons coconut oil and mix with 2 tablespoons apple cider vinegar. (The oil and ACV don’t really combine but that’s okay.) Keep in a closed container in the shower. If your coconut oil solidifies, stick the container under the shower stream while you’re applying the above scrub and it’ll melt in no time. Then apply the ACV/coconut oil mask to underarms & upper arms. Do not rinse.