Zenagen Evolve Professional Accelerating Shampoo Treatment for Hair Growth & Thinning Hair - Volumizing & Strengthening Shampoo for Men & Women - Salon Quality Hair Care for Daily Use at Home

I was recommended Zenagen Evolve by my stylist. I have fine hair and had tape-in extensions put in. Long story short... I damaged my hair badly heat styling the much thicker/courser textured hair of the extensions. My prior stylist was less than gentle when removing the extensions, ripping additional hair out at the root. I was left with damaged and thinned hair which was breaking and shedding off at a much higher rate than normal.I switched stylists and was recommend this product. The 6 oz treatment with 5 oz conditioner lasted just over 4 months with my shoulder length hair (using every other day as suggested). Not only does it smell great and leave my hair soft, shiny and voluminous, I've noticed that the short broken and ripped sections are starting to grow out. My hair grows pretty slow (only about 3-4" in a year) and in 4 months I've seen nearly 2" of growth.After doing some research and calculations, the 32 oz bottles are a major savings per oz over the small bottles (6 and 5 oz). I was happy with the product and results so I decided to make the investment. If I keep my hair in this longer, shoulder length lob, I estimate the bottles will last me about 21 months.An added bonus is that 1 pump is almost exactly the amount of product I need, it is very concentrated and a small amount goes a long way.The price is high, and it took me a while to get up the courage to snap for $385 in product between the treatment and conditioner, but it really is a large savings over the small bottles, and the extra 5% rewards through amazon prime credit card made this worth the price to improve the health of my hair.