Before buying a supplement, turn its headline promises into questions you can check. Product facts, research findings, and purchase protections answer different questions.
1. Identify the claim
Write down what the seller is promising. Is the statement about an ingredient, the finished product, or a personal testimonial? A general reference to “research” does not tell you which of these was studied.
2. Find the actual product information
Check the label, serving size, ingredient amounts, directions, and warnings. In the SynaDentix example, the label provides a 400 mg blend but no individual ingredient doses. That gap matters when comparing the formula with research.
3. Ask what the study tested
Check whether the study used the finished product or just an ingredient. Look at the dose, delivery format, comparison group, measured outcomes, and participants. A laboratory experiment or a study in animals cannot by itself establish the same benefit for people taking a supplement.
4. Separate evidence from testimonials
A reported personal experience can suggest questions worth investigating, but it cannot show that the product caused the outcome or that your experience will be similar. Look for evidence supporting the specific promise, not just a collection of enthusiastic stories.
5. Understand FDA-related statements
The FDA explains that supplements are not generally approved for safety and effectiveness before marketing. A statement about a registered manufacturing facility should not be read as approval of the product’s benefits.
6. Read the purchase terms independently
A money-back guarantee is a purchase policy, not clinical evidence. Check when the return window starts, whether opened bottles must be returned, and who pays shipping. A low bottle price may also require a larger upfront purchase.
A practical example
The SynaDentix screenshots show $49 per bottle for a six-bottle purchase totaling $294. Its return policy calls for all bottles to be returned and assigns return shipping to the buyer. Those are useful buying details, but neither proves a health benefit.
Questions answered in one place
Our SynaDentix review separates label information, seller claims, advertised pricing, and refund requirements.
Read the review →