Barely need to use any, it spreads so well. The smell is amazing, I dont know exactly how much it helps to smooth out my hair, just because i've always been extremely frizzy but its really easy to get a comb through after using, which is a great plus.
The smell of this shampoo alone makes it amazing. I also feel like i dont need my hair as wet to get a good lather, cutting my shower time down by a few minutes. My hair feels extremely clean after use but not overly tangled. I would definitely continue to use this, It doesnt seem to leave any residue in my hair, and since using, my hair actually feels a bit less straw-like and a lot softer.