Product Testing & Research
Are your products FDA approved?
Dietary supplements are regulated by the FDA, but the FDA doesn't "approve" dietary supplements the way it does pharmaceuticals. We follow all FDA requirements, including manufacturing in cGMP (current Good Manufacturing Practice) certified facilities and testing each batch to ensure what's on the label matches what's in the bottle. We also test every batch for heavy metals and microbial contamination, ensuring all levels are below FDA safety thresholds.
Do you test your products?
Yes — every batch of every product.
We send each batch to independent, accredited laboratories in the United States for third-party testing. We test for:
- Heavy metals (arsenic, cadmium, lead, mercury) — every batch
- Microbial contamination (bacteria, yeast, mold, E. coli, Salmonella) — every batch
- Identity verification (confirming ingredients match the label) — annually per product
Then we publish the results. See our Lab Reports page.
Are your products third-party tested and verified?
Yes. Our products are tested by accredited third-party laboratories in the United States, including Analytical Resource Laboratories (ARL) and Qalitex. We publish the full lab reports — not summaries, not badges — so you can verify the results yourself.
Is your product manufactured in a GMP-certified facility?
Yes. All Therexa products are manufactured in cGMP (current Good Manufacturing Practice) certified facilities that are registered with the FDA.
Are your supplements tested on animals?
No. We do not test on animals during any part of our process and are committed to cruelty-free practices.
Can I see your lab reports?
Yes - that's the whole point. Visit our Lab Reports page to view the actual third-party test results for each product.
Product & Usage
How do I choose the right Therexa product for me?
Everyone has different health goals and nutritional needs. Supplements can help support general wellness or fill specific gaps in your diet. We recommend reviewing the product descriptions and ingredient lists, and consulting with your healthcare provider if you're unsure what's right for you.
How should I take Therexa supplements?
Follow the suggested use instructions on each product label. Most supplements should be taken with water, and some are better absorbed with a meal. If you're unsure about dosage, consult your healthcare professional.
When is the best time to take my supplements?
It depends on the product and your routine. Some supplements work best in the morning, others with meals. Check the product label for specific guidance. A good tip: pair your supplement with an existing habit — like your morning coffee or brushing your teeth — so you don't forget.
Are your products third-party tested and verified?
Yes. Our products are tested by accredited third-party laboratories in the United States, including Analytical Resource Laboratories (ARL) and Qalitex. We publish the full lab reports — not summaries, not badges — so you can verify the results yourself.
How should I store my products?
Keep them in a cool, dry place away from direct sunlight. No refrigeration needed unless specified on the label.
Should I take supplements every day?
Our products are formulated for consistent daily use. That said, everyone's situation is unique — we recommend consulting your healthcare professional to determine what's right for you.
Can I combine Therexa supplements with my prescription medication?
It's possible, but we always recommend speaking with your healthcare professional before starting any new supplement regimen, especially if you're taking medication.
Can I take more than one Therexa product at once?
Everyone's nutritional needs and goals are different. Many of our customers use multiple products together based on their specific needs. That said, we recommend consulting a healthcare professional about specific combinations to ensure they're appropriate for your situation.
How long before I notice my supplements are working?
Results vary from person to person. You may notice effects within days, or it may take longer. Many supplements work best with consistent use over time — the benefits compound as the nutrients build up in your system.
When do my products expire?
Check the base or side of the container for the best-by date. Typically, our products have a shelf life of two years from the manufacturing date when stored properly.
What age group can take Therexa supplements?
Our products are formulated for adults 18 years and older.
Are your supplements suitable during pregnancy or breastfeeding?
While our supplements are formulated and tested to be safe for the general adult population, we always recommend speaking with your healthcare provider before taking any dietary supplements during pregnancy or breastfeeding.
Are Therexa supplements vegan?
Some of our products are vegan, but not all. Please check individual product labels for specific dietary information. Products containing gelatin capsules, for example, are not vegan.
Are Therexa supplements non-GMO?
Most of our products are non-GMO. Check individual product labels for specific details.
Are your products gluten-free?
Many of our products are gluten-free, but this varies by product. Each label indicates whether the product is free from gluten, soy, dairy, or other common allergens.
Purchasing
Where can I buy Therexa products?
Therexa products are available exclusively on Amazon.
Do you offer Subscribe & Save?
Yes! Subscribe & Save is available on Amazon for most of our products — you can save on every order and never run out.
Do you ship internationally?
Amazon handles all fulfillment and shipping. International availability depends on Amazon's shipping policies for your region.
What is your return policy?
We offer a 90-day money-back guarantee. If you're not satisfied with your purchase for any reason, contact us and we'll make it right.
Why are your prices lower than other brands?
We focus on what matters — quality ingredients, proper dosages, and verified testing — and skip the rest. No celebrity endorsements, no expensive retail markups, no bloated marketing budgets. We pass those savings directly to you.
Still Have Questions?
We're here to help. Support@therexa.co