I was interested in trying this body care pack as I have never used a concentrate hair care product before. It is a great idea as it reduces packaging that will probly go from my recycling bin into the landfill. I had difficulty unscrewing the lid to the shampoo, but my husband opened all the tins for me to ensure that I can open them all next time.It will take time to tell whether the products will help with our hair and skin care, but I am not expecting any drastic change for better or worse.While the product description suggests using only "dime worth" of shampoo, I needed to use nearly 3 times that amount. This is likely due to two different factors. (1) My hair might be longer than what length they considered when determining what was necessary, and (2), we do not have a water softener, and our city water is hard (>300 ppm). I know in the surrounding community some private well water is harder (>450 ppm). Shampoos include water softeners, and the Everist shampoo lists Citric Acid as the last ingredient in the shampoo, a chelate that naturally softens water to some degree. Hard water requires more soap and more water for rinsing. The needing to triple that amount is a clue to the hardness of your water.My four-star review considers cost, packaging, consumer education in the product description, and value for the money.At $90 CDN, the product is nice but expensive. While the product is attractively packaged, it is overpackaged without providing the necessary protection to keep the tins from becoming dented. As for consumer education, Everist could better set consumers expectations by advising that water hardness affects the amount of condensed product that is necessary to use. I suspect that a dime size amount of soap is for softened water at less than 17 ppm hardness, and knowing that information would be helpful.The bottom line is that if you have hard water (>100ppm), set your expectations accordingly. Hard water is not necessarily bad for your health as the calcium, magnesium, and potassium contribute to building strong bones, promoting blood circulation, and they help regulate the rate and rythm of the heartbeat. There can be unwanted minerals in tap water as well, but without water softeners, the hair is left dry and prone to breakage because the minerals in the water form a layer on the hair that reduces the ability for the hair to receive moisture. Extended use of unsoftened water can leave the hair prone to breakage, and lead to hair loss.