Mental Stamina Supplement: What Can Be Claimed?

We cannot say it does, because SodaPeak makes no focus or mental claim and no trial exists.

Compare what is printed on the bottle with what ads say.

1. Label front“SUPPORTS HEALTHY MUSCLE*”Structure/function wording with the FDA asterisk. No trial of SodaPeak exists, and none of the eight lines has good human evidence for muscle. (FDA, Information for Consumers on Dietary Supplements) (NIH ODS, Exercise & Athletic Performance)
2. Label back“Test Boost Proprietary Blend”The name hints at testosterone, but the label makes no testosterone claim. A review of over-the-counter testosterone boosters found weak support for their claims. (Clemesha et al. on T-booster claims (SMSNA summary)) (21 CFR 101.36 (Supplement Facts, proprietary blends))
3. Label front“ADVANCED FORMULA”A name, not a measured property. The blend prints a 1,200 mg total and no single amount, so no line can be checked. (21 CFR 101.36 (Supplement Facts, proprietary blends))
4. Brand badge“GMP certified”No factory, certifier or audit date is printed anywhere we could see. (NIH ODS, Dietary Supplements: What You Need to Know)
5. Brand badge“Registered FDA facility”The label prints no facility statement. Registration, where it exists, is not FDA approval of a product. (FDA, Information for Consumers on Dietary Supplements)
6. Brand badge“Made in USA”The eBay listing shows the item located in India, so ask the seller where a given bottle was made. (eBay listing for SodaPeak)
7. Ads for male-health pillsClaims to raise testosterone or fix erectionsThese are drug claims. FDA has found sexual-enhancement supplements spiked with hidden drug ingredients, and the FTC expects real evidence for health claims. (FDA public notification, hidden drugs (SexRx)) (FTC, Health Products Compliance Guidance)
8. Bottle backThe FDA statement'Not intended to diagnose, treat, cure or prevent any disease.' That line is accurate, and it is the one to keep in mind. (FDA, Information for Consumers on Dietary Supplements)

Claims as printed on the label and the brand badges. Health claims need competent and reliable scientific evidence, generally human trials of the same product (FTC, Health Products Compliance Guidance).