Always follow the serving size printed on your bottle. Across the range that is either two or four gummies a day — Sleep and NAD+ are two, while Creatine and Pre-Workout are four, because those active doses are larger. Every bottle states its own serving size and how many servings it contains, so check the label rather than assuming they are all the same.

Taking more than the stated serving will not speed anything up or improve your results. With a formula like creatine the benefit comes from taking the correct dose consistently over several weeks, not from taking extra on any one day.

Yes. Every Riva formula is sweetened without added sugar, so you get the taste of a gummy without the sugar crash that comes with most of them.

Every Riva formula is Halal certified, and none of them contain animal gelatin — we use a plant-based gummy instead. The whole range is also sugar-free, sweetened with steviol glycosides and sugar alcohols rather than sugar itself.

It depends on the formula, and it varies from person to person. Creatine in particular works by saturating your muscles over time — give it three to four weeks of consistent daily use before you judge it.†

Orders usually leave our New Jersey facility within one business day. Domestic delivery typically takes 3–5 business days, and shipping is free on orders over $40.

Unopened bottles can be returned within 14 days of delivery for a full refund — email us with your order number to start one. We can't take back opened bottles for safety reasons, but if anything arrives damaged or incorrect we'll replace it free.

Most people can, and many stack Creatine with Pre-Workout or Sleep. Check the labels so you're not doubling up on the same ingredient, and talk to your doctor if you take prescription medication.