Updated May 11th 23
The most commonly asked questions we saw when researching pro nutrition six star testosterone boosters
Calcium 50mg - 50mg isn't really going to do much, there are some studies that show calcium supplementation can boost testosterone production, [1] but the minimum recommended daily intake is 2500mg, so we don't think that supplementing for such as small amount is all too likely to do much. We're not off to a good start with Six Star.
Sodium 5mg - There have been some studies on rats that show sodium can boost testosterone production, but nothing that actually shows this would work for humans. Rhodiola Extract 386mg - There's potentially some benefit to this, although current studies are inconclusive and only show very minimal testosterone gains as compared to a placebo. [2]
Rhodiola rosea seems to have a more pronounced effect on cortisol, which does lower testosterone, but unless you're currently under high stress it won't likely do anything. The one positive thing we can say about pro nutrition six star testosterone booster is that at least this is within the effective dosage range. So this would explain at least some positive reviews as people who have taken six star could then go on to see an uplift in mood, which could of course lead to them to think the supplement is working as described.
Ginkgo Extract 2.7mg - Once again, in relation to testosterone levels has only been shown in rat studies and even then it was 50mg/kilo of body weight to see results. We're not sure what 2.7mg is supposed to do. [3] Again a pointless ingredient.
Boron Citrate 100mg - This is actually only 5mg of actual boron, the problem with the six star testosterone booster dosage is that we'd like to see is at least 8mg (usually about 9-10mg for the average sized man) for it to actually have any notable impact on test levels. [4] That's not to say it won't do anything at all, but considering this is as close to getting anything right as they come, it's not great. Six star testosterone booster came close to getting something right here. But, still managed to trip at the last hurdle. And Boron is a really good ingredient, not only has it been shown to raise test levels, but seperate studies have shown that it can improve lean body mass gains over 7 weeks even in trained individuals with healthy testosterone levels [5] which makes it even more of a shame that it's incorrectly dosed.
All in all six star testosterone booster could score lower, but only just. And that's simply due to the fact that it should improve mood which is of course one of the symptoms that many people will be trying to treat. It's just not going to do anything else.
1 - https://pubmed.ncbi.nlm.nih.gov/19099204/
2 - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6230218/
3 - https://pubmed.ncbi.nlm.nih.gov/18001735/
4 -https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4712861/
5 - https://pubmed.ncbi.nlm.nih.gov/8508192/