I have never used any of their alkalizing products so cannot comment... I did, at one time, think about using them and did use Natural Calm and believe it to be a great product, but unnecessary with the use of Epsom Salt baths and the small amounts of ES used in the Alkalizing drink and/or taken with meals.
On their Candida page I have done (not purchased from them) and am doing from time to time, spirulina, chlorella, garlic, oil of oregano, GSE, and olive leaf; all great stuff.
With Chlorella and Spirulina, be sure to get good quality... I like powders over tablets as I believe they are better utilized and it is cheaper.