1. I use home made Amla-Reetha-Shikakai mixture and don't use these chemical products. My hair are strong enough to easily bear the weight of 10-15 kg (upper limit not tried). 2. The feedback received from the user who used it- This product is average. 3. I recommend to use the Ayurvedic home made products as far as possible (Amla-Reetha-Shikakai are easily available and can be easily grinded in grinder with small efforts). This is my guarantee that you'll forget all these non-sense products that are marketed only for profit motive. 4. Lot of videos are available on YouTube to make your own shampoo with Amla-Reetha-Shikakai. (I prefer Shri Rajiv Dixit's Video).