The short
version.

A 90-day money-back satisfaction guarantee — even if the bottle is opened and empty, and you do not need to ship it back. Email support@corelabs.co with your order number. Full detail in Returns & Refunds.

Choose delivery every month, every 2 months or every 3 months. Save 10% on one product, 15% on two, or 20% on three or more — every subscription order ships free. Skip, change or cancel any time from your account.

Subscribe to three or more products and every line saves 20% off the one-time price (two save 15% off each, one saves 10%). The tier applies automatically at checkout and ships free every time.

In your account, or with the one-click link in any renewal email. No fee, no retention call, no minimum commitment. Cancel at least 48 hours before your next charge for it to apply to that order.

Orders placed before 12pm PT ship the same or next business day, and typically arrive in 3–6 business days.

Every subscription order ships free with no minimum. One-time orders ship free over $75; below that a flat rate is shown at checkout.

You get a tracking link by email the moment your order ships, and it also appears in your account order history.

Not yet — we ship within the United States only. International shipping is on the roadmap.

Every production lot is tested by LightLabs, an independent laboratory, for identity, potency, heavy metals and microbials. The Certificate of Analysis for your exact lot publishes on the product page — no form, no email, no account.

Match the lot number printed on your label to the lot listed on the Certificate of Analysis on that product page. Every lot gets its own certificate — a generic document covering “all batches” is not a COA.

In the USA, on our own cGMP manufacturing infrastructure, with a complete batch record and full lot traceability for every batch we produce.

The ingredient form, the dose, independent testing on every lot, and manufacturing we own rather than rent. Each is a real cost and each is visible on the label or the certificate. The long answer is in Price & Value.

No. Every ingredient is listed with its own amount. A proprietary blend gives you one combined weight for a group of ingredients, and you cannot tell which were loaded and which were dusted in.

That the amount in a serving matches the amount used in the research the ingredient's reputation rests on — not a recognisable name at a fraction of the studied amount.

The capsule shell is hypromellose, a plant-derived cellulose rather than gelatin. Suitability of a whole formula depends on its ingredients, so check the individual product page.

They are made without gluten-containing ingredients. If you have coeliac disease, email us about the specific formula before ordering.

It varies by formula and by person. Most are designed for daily use over weeks, not days — consistency matters more than anything else. Give a full bottle before drawing conclusions.

Speak to your doctor or pharmacist first. Several nutrients genuinely interact with common medicines, and your pharmacist can check your specific list in minutes.

We cannot assess you, so we will not pretend to prescribe. We can tell you exactly what is in each formula, at what dose and in what form. A qualified practitioner who can see your history does the rest.

Email support@corelabs.co or use the contact page. We respond within one business day, Monday to Friday, and a human answers.