Olaplex No.4 Bond Maintenance Shampoo is a game-changer in hair care, especially for those seeking to revive and strengthen their tresses. Renowned for its revolutionary bond-building technology, this shampoo goes beyond typical cleansing. Formulated to work in harmony with the Olaplex system, it helps repair and protect hair from within, tackling damage caused by chemical treatments, heat styling, and environmental stressors.

I finally ended up with this Olaplex shampoo.  you only need to use a small amount, so the price is not too bad as the bottle lasts, Since I've been using this shampoo, my hair is feeling so soft and healthy!                                                       

I was reluctant to buy this due to its price. However, due to my age, my hair was getting very dry. I have thin fly away hair. However, with this product you feel that you have salon hair every day. It really moisturises the hair and I don't have to use it every day either. You only need a small amount. Place a small amount on the palm of your hand (one penny size) and then rub your hands together until it lathers up and then wash your hair. This is what my hairdresses told me to do. It makes it last so much longer. Now I bought one at 2L😅