1. What is the product actually trying to do?
Libido, erection support, testosterone support and training performance are different intents. A fair comparison starts by matching products with the same job.
2. Is every active ingredient disclosed?
Named amounts make it easier to compare products and identify overlap. Proprietary blends are not automatically bad, but they give you less dose information.
3. Is evidence ingredient-level or product-level?
A trial on one herb is not a clinical trial on the finished bottle. Product-specific randomized evidence is a stronger evidence type when available.
4. Can you realistically follow the serving?
Two capsules once daily is operationally different from one capsule four times daily. Adherence is part of a real-world decision.
5. Are there safety or medication questions?
Natural does not mean interaction-free. Use a pharmacist or clinician for a personal medication review.
6. What is the actual cost per day?
Compare the full daily serving, not just the sticker price of the bottle. Also read the current return terms before buying a multi-month supply.