Crazybulk is just a massive, well-orchestrated internet marketing scheme. Crazybulk has flooded the internet with fake reviews, even the apparently "skeptical" reviews (like the ones that start with "What's up with this company Crazybulk" or "Read before buying Crazybulk" or "Is Crazybulk for real" are also fake and always end up promoting the company. Crazybulk pays its resellers 30% or more to push the product so there is a great incentive to post positive reviews. It is impossible to find an unbiased review because Crazybulk has so many fake reviews that the fakes push out any real reviews. The reviewers, even on Youtube, all promote the product and include links to purchase the product. Even the reviews from supposed medical sources or personal trainers include multiple links to purchase the product. Crazybulk uses SRO (search result optimization), for example linking to popular sites, linking to each other's reviews, and paying for top search results, to make sure their fake reviews are at the top and crowd out any legitimate reviews (if any). Other tricks include: 1. Crazybulk posts its fake reviews under fake urls that sound like journals or newspapers like "www.kirklandreporter.com". 2. Crazybulk has multiple pages and sites that post its ad entirely as an image, not text, so that the term "crazybulk" does not appear in the search. This way if you get tired of seeing crazybulk ads and you search, for example, "safe steroids -crazybulk" (trying to exclude crazybulk from the search results) the crazybulk ad will still come up, there is no way to exclude the search term. 3. Crazybulk has paid heavily for its fake sites and ads to come up if you search "safe steroids" or "use steroids safely", in fact Crazybulk is not steroids and is not a replacement for steroids.
If the company had a good, functioning product it would not need these dubious sales tactics.
I have found exactly one independent review of crazybulk and this one states crazybulk contains a dangerous ingredient, see https://www.youtube.com/watch?v=9gHRFByJnY8.
The reality is crazybulk has dubious ingredients that do not help at all and certainly do not, in any way, match the results of steroids. At best crazybulk has some vitamins or herbal supplements with no clinically proven results. For example their "D-Bal" pill, which they explicitly market as a substitute for the genuine steroid dianabol, contains some vitamins and ingredients like "MSM". Review MSM on any legitimate medical website it will say MSM has no proven effect on anything, let alone musclebuilding. Example: https://www.webmd.com/vitamins-and-supplements/msm-methylsulfonylmethane-uses-and-risks.
If you want steroids results you must use actual steroids and accept the risks. Or don't use steroids which is fine too. But don't waste your money on crazybulk.