Baking soda is my ultimate versatile beauty cure and it is one of the least expensive products costing only 1-2 dollars/euros for a box that can last weeks to months and replace endless other store bought items. Baking soda is all natural and safe... I believe that if you can't put something inside your body, you shouldn't rub it onto you body... and extremely effective. Whitening teeth without the pain, exfoliating your skin better than any store-bought scrub, anti-acne, deodorant, razor burn and itchy skin relief and more... plus its perfect to take travelling, just don't put it in a ziplock in your hand luggage, white powder doesn't bode while with the TSA....

Hair Cleanser: Sprinkle a little baking soda onto shampoo to remove buildup of products and use as a hair clarifier.

Dry Shampoo: Use as an alternative to dry shampoo. And this one won't make your hair fall out... 

Hairbrush Cleaner: Clean hairbrushes by soaking them in hot water mixed with a teaspoon of baking soda for 20 minutes. 

Makeup Brush Cleaner: Soak brushes in warm water and baking sodafor 20 minutes, and then rub undissolved baking soda into bristles with fingers. 

Facial Exfoliant: Mix with cleanser or just water to form a paste and use as a face scrub for some impressively soft skin results. Instead of environmentally harmful exfoliant beads, baking soda has naturally tiny particles which can cleanse dip into pores while exfoliating away dead. And baking soda naturally dissolves unlike the beads which work their ways into streams and oceans, posing a risk to wildlife on many levels.

Body Exfoliant: Use as body exfoliant to strip dead skin and speed up cell turnover.

Deodorant: As baking soda neutralises acids and bases and removes odours, a small dusting can work as an antiperspirant. 

Razor Burn: Soothe razor burn by mixing a water+baking soda solution and allowing it to dry on affected area before rinsing with cold water. 

Acne: Make a paste with a drop of water and dab onto acne spots, allowing to dry. Repeat as needed. 

Nail scrub: Dip brush or old tooth brush into water+baking soda solution and use to scrub away nail polish stains and exfoliate cuticles without having to cut them back, potentially causing infections.

Foot Bath: Make a small bath with one part warm water to three parts baking soda and soak for 10 minutes, followed by moisturiser and a little self-foot (Ayurvedic) massage. 

Itchy Skin Reliever: Draw a warm bath with baking soda to relieve dry, itchy winter skin. Can also be used in summer against sun burn or bug bites. 

Tooth Whitener: Sprinkle on toothbrush to remove stains for whiter teeth. Baking Soda won't cause tooth sensitivity like store bought whitening kits.