Hair ResQ Thickening Treatment for thinning hair is a natural shampoo/conditioner that is formulated with Biotin to strengthen and revitalize hair plus caffeine to energize and invigorate hair follicles to encourage healthy hair growth. Certified Organic Lemon Mint and Pineapple help protect hair from environmental damage as well as tighten the cuticle for smoother, shinier strands. We believe what's not in our products is just as important as what is, and that's why we are paraben-free, sulfate-free, vegan, and have banned over 1600 harmful ingredients. All of our packaging is produced using 100% recycled Ocean Bound Plastic.