These are the formulas that get reordered. Not the ones that sell best on a first purchase, which is a different and much less useful measure, but the ones people come back for a second and third time.
That distinction is worth explaining, because it is the only honest signal a supplement brand has. A first order tells you the page worked. A second order tells you the product did. Nobody buys a second bottle of something that did nothing, and no amount of marketing changes that.
What that tells you about this list
Reorder rates are hard to fake. They are also invisible to most shoppers, which is why so much of this category is sold on claims rather than on what happens after the first bottle. This page is the closest thing we have to publishing our own results.
The other thing it tells you is what people actually need. Nine times out of ten the reorders are the formulas for problems that are chronic rather than occasional: sleep, circulation, digestion, energy. Nobody reorders a product for a problem that went away.
The ones people keep buying
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Magnesium Glycinate at 275mg of elemental magnesium from 2,500mg of the chelated form. For tension, jaw clenching and the three am wake up. The most reordered formula on the site, and the one we recommend to anyone who does not know where to start.
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Nitric Oxide at 800mg of L-citrulline and L-arginine. For circulation, training and warmer hands. People notice this one in the first fortnight, which is why it comes back.
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Lion's Mane at 1,000mg of extract, 40% polysaccharides. For focus without stimulation. Slower than people expect and more durable than they expect.
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Beetroot at 1,300mg of organic whole root. For stamina and blood flow, in a capsule with no beet taste. The one people buy who tried beet powder and could not keep it up.
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Ashwagandha at 650mg of organic root with black pepper. For a nervous system that will not stand down. Often bought for sleep and kept for everything else.
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NMN at 500mg of beta-NMN, 99.9% purity. For energy at the cellular level. The slowest to show and the one people are most reluctant to stop.
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Probiotic 40B at 40 billion CFU across four named strains. For a gut that has become unpredictable. Bought once to try and then on subscription.
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D3 + K2 at 125mcg of D3 with 100mcg of K2 as MK-7. The one people take for years without thinking about it.
How to buy from this page
Buying three bottles saves 25% and buying six saves 35%, and the discount applies to any combination rather than to the same product three times. Most people start with a 90-day supply, because that is how long most of these take to become obvious.
If you are choosing between a subscription and a one-time order: the subscription saves a further 15% and you can skip, pause or cancel at any time. Because these are daily formulas, most people who try one end up on a subscription by the second bottle anyway.
Why we can publish this list
Every formula here prints its doses and its forms. No proprietary blends, no underdosed token ingredients, no filler to pad the capsule. If a panel is not specific, the ingredient is usually the cheap version, and this is the collection where that would show up fastest.
It also means these are not the cheapest products in their categories, and they are not meant to be. Magnesium glycinate costs more than magnesium oxide. Twenty grams of collagen costs more than two. The reorder rate is the return on that difference.
Common questions
How do I choose between them? Start with the problem that costs you the most rather than the one that sounds most interesting. The collection pages explain which formula fits which situation.
Can I take several together? Yes. Most people run two or three. Start one at a time so you know what is doing what.
What if the best seller is not right for me? Then it is not right for you. A high reorder rate means it works for a lot of people, not for everyone.
How long until I know if one is working? Four weeks for the fast ones, eight to twelve for the rest. That is why the 90-day supply exists.
What if it does not work? Email support@getsuppla.com within 60 days and we refund you in full. No return shipping and no forms.
A note on the guarantee
The 60-day window is not a marketing device. It exists because most of these formulas take four to eight weeks to show, and judging one at two weeks would be judging it before it has had a chance. Every formula on this page is covered, on every order, with no return shipping required.