> For the complete documentation index, see [llms.txt](https://help.decodeage.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.decodeage.com/decode-age-support/quality-and-about-us/quality-and-third-party-testing.md).

# Quality and Third-Party Testing

Every one of our products is third-party tested.

* **Who makes them:** marketed by Centenarians Life Sciences Pvt. Ltd. and manufactured in India by Nutra Healthcare Pvt. Ltd., Kamrej, Gujarat.
* **FSSAI licences:** marketer 10722998000001; manufacturer 10722998000014.
* **Testing:** every product is tested by an independent third-party lab, and each batch is tested for heavy metals.
* **Test reports:** want the test report for your batch? Message us on WhatsApp at +91 9009003095 with the batch number from your pack.
* **No steroids:** our supplements contain no anabolic steroids. ResVit contains 0.5 mg melatonin.

**Next step:** See [Which supplement should I start with?](/decode-age-support/about-supplements/which-supplement-should-i-start-with.md), or [shop the range](https://decodeage.com/collections/all?utm_source=help_centre\&utm_medium=gitbook\&utm_campaign=quality).

## Common questions

### Who makes your supplements, and what is the FSSAI licence number?

Our products are marketed by Centenarians Life Sciences Pvt. Ltd. and manufactured in India by Nutra Healthcare Pvt. Ltd., Kamrej, Gujarat. FSSAI licence numbers: marketer 10722998000001, manufacturer 10722998000014.

### Are your products third-party tested?

Yes. Every one of our products is third-party tested.

### Do your supplements contain steroids?

No. Our supplements do not contain anabolic steroids, and each product page lists the full ingredients. ResVit contains 0.5 mg melatonin, a hormone the body makes to regulate sleep.

### What is used to give Decode Age's capsule shells their white colour?

For products manufactured from August 2026, we use calcium carbonate, a naturally occurring mineral, to give our capsule shells their white colour instead of titanium dioxide (E171). Products manufactured before August 2026 use white capsule shells that contain titanium dioxide.

Our liquid-filled hard capsules have transparent shells, so they are not whitened at all.

### Do Decode Age's capsule shells contain titanium dioxide?

It depends on the capsule and when it was made. You can check the manufacturing date on your pack.

* **White capsules made from August 2026:** no. We have transitioned to Lonza Capsugel capsule shells, which are free from titanium dioxide (E171).
* **White capsules made before August 2026:** yes, the capsule shell contains titanium dioxide.
* **Transparent liquid-filled hard capsules:** the shell contains no titanium dioxide. The capsule sealing band does contain titanium dioxide. This is the thin band that joins the capsule body and cap; it prevents leakage, keeps the capsule securely closed and shows if it has been tampered with.

We remain committed to transparency and ensuring high-quality ingredients across our products.