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Since supplements aren't regulated by the FDA, transparency is very important to me when buying these. I have bought their Nitro Resveratrol several times in batches, so have spent a lot of money to them. Recently it came to my attention that one of the ingredients in this product, Polysorbate 80, is quite controversial as it has been linked to colon cancer. I asked a question about the dosage on their site, but they answered 3 months later (and only privately) that the product has been renewed without this particular ingredient. Since I bought a whole batch I still have a lot left so I asked them again how much Polysorbate 80 is in this, as I am worried it might not be safe. They then replied that the formulation is a trade secret and they cannot answer my question. They also had my question removed from Amazon. You would think they could at least disclose information on the dosage of one particular, controversial, ingredient. I am not asking for the entire formula. The lack of transparency and need to keep hiding or removing my questions is really disappointing and makes me pretty distrustful of the company as a whole. I'll be buying my resveratrol elsewhere in the future.
Update - I appreciate the quick response from the company. Most of my complaint was based on the fact I barely got a response before and never an answer to my question. For a consumer, it's hard to decide whether to take a supplement or not when you can't be sure about the dosage of one or several of the ingredients. Studies always mention what levels they have found to be safe, but that's not of much use when you're not sure how much of it you're ingesting yourself.
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Have been trying to order for 2 days. Will not let me login. Does not recognize my email or...
Hi, I made a rather expensive order to RevGenetics and expected it to be delivered by now, but...
N. D. my name is Anthony, founder of RevGenetics. We have been in business since 2007 and much like Coke and Pepsi, make unique formulations that we hold as trade secrets. We actually listen to the science and change our formulations based on the best studies available. Accordingly, polysorbate is not carcinogenic (https://go.drugbank.com/drugs/DB11063) and we used it in the past because the FDA said it was safe (GRAS). Having said that, we understand that people want a vegetarian product that works as good or better than the Nitro. Yes, we recently changed our formula because the public demands vegetarian and clean label ingredients without strange flow agents, emulsifiers, etc.
In the USA we don't sell the old formulation of Nitro that N. D. is talking about, because we listened to our customers.
Our current formula is still a unique formula, and its formulation is still a trade secret, but we have taken the Polysorbate out of the formula and stopped using Gelatin capsules. We traded in the gelatin for HPMC, which are vegetarian capsules, and use a better type of Resveratrol in the new formula that is absorbed passively and actively and its half-life in the body lasts almost 4 whole hours. We feel it's the best on the market, I think many who take it will agree.