The most commonly asked questions we came across when researching our Andro 400 reviews
Eurycoma Longifolia aka Longjack - This is is the backbone of all 3 of the Andro 400 products. Whilst Longjack isn't a bad test boosting ingredient, it isn't the best to make a base from. A lot of studies have shown Longjack to be effective specifically for men with low testosterone [2]. However it hasn't been shown to be particularly effective in men with normal tesosterone levels. This is why we would prefer Ashwagandha as a baseline. This is the only ingredient in Andro 400. Making the product overpriced.
L-Arginine and L-citrulline - These are the ingredients in Andro 400 Max, and it's not surprising that Andro 400 Max reviews aren't good. Neither of the ingredients actually help boost testosterone. There were a couple of positive animal trials, but this was not replicated in humans. L-Arginine does have some stress reducing benefits. [3] As a result we do not recommend Andro 400 Max. However, these ingredients are not in either of the other two supplements.
Andro 400 Ultra Max T has longjack and the following list of mostly decent ingredients:
D-Aspartic Acid - This amino acid has been demonstrated to boost testosterone levels, the problem with Andro 400 UltraMax T is that it's nowhere near a large enough dosage to actually work in the case of Andro 400.
Garcinia Cambogia - Not actually particularly useful for anything that Andro 400 and is marked as a potentially dangerous ingredient although there aren't a lot of cases of this, it's still worth noting. [1] Either way it doesn't really belong in a testosterone booster and has more potential application for weight loss.
Acetyl-L-Carnitine - This is actually quite a good inclusion and the dosage in Andro 400 is fine. It's mostly useful for aging men rather than trained men under 50 [4]. This means it's not one of the best testosterone boosters if you're looking to build muscle mass, but is otherwise good
ForsLean - Not a good ingredient for most fat burners or for a testosterone booster, we're not sure why this is here at all. It does help break down fat cells whilst undertaking cardiovascular exercise, but only in this case and considering the other ingredient selections in Andro 400 Ultra we don't think it really fits well.
Andro 400 also misses out on key vitamin and mineral blends which we expect to see in good testosterone boosters. For example nearly half of men in the USA are deficient in vitamin D and supplementing has been shown to raise levels by around 40%. Even a minor zinc deficiency can tank test levels and 12% of men are deficient, magnesium has similar impacts as do certain b vitamins. Then we have the likes of Ashwagandha and the levels of DAA are too low. It also misses out on effective testosterone boosting ingredients like Panax Ginseng and Fenugreek, both of which have been studied to have long term positive impact.
1 - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5143754/
2 - https://pubmed.ncbi.nlm.nih.gov/21671978/
3 - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1062147/
4 - https://pubmed.ncbi.nlm.nih.gov/15072869/