The cheapest bottle on a shelf is rarely the cheapest supplement, because the number you pay is a bottle price and the number that matters is cost per serving. Divide one by the other and the order changes. Our own four formulas spread across a range of nearly two to one at list price, and the widest bottle is not the best value.
Doing the division properly
Take the price, divide by the count, multiply by the serving size. The zinc capsules are $27.99 for 120 capsules at 2 a day, which is 60 servings and 47 cents each. The magnesium gummies are $25.99 for 60 at 2 a day, which is 30 servings and 87 cents. The smaller bottle is nearly twice the cost per serving.
Garlic sits in the middle: $26.99 for 90 gummies at 2 a day is 45 servings, about 60 cents each. Beef liver is $21.99 for 60, 30 servings, 73 cents. None of those numbers appear on a product page, which is why the comparison feels harder than it is.
Why the cheapest bottle wins the click
Because bottle prices are visible and serving counts are buried. A shopper comparing two tabs sees $21.99 against $27.99 and stops there. The 30 day supply against the 60 day supply is two clicks deeper, and most people never make them.
This is not a mistake the industry discourages. A brand can lower the bottle price by shrinking the count and keep the margin, and the customer reads it as a discount.
Where the bulk sizes actually pay
Genuinely larger packs do exist, and they're worth the money when the math holds. Our zinc bottle is the clearest case, because 120 capsules at 2 a day is a real 60 day supply rather than a big number on a label. The per serving figure drops to 47 cents, roughly half the magnesium rate, and that's arithmetic rather than positioning.
The test is simple. If doubling the count doesn't roughly halve the cost per serving, you're buying packaging.
The cost of not finishing a bottle
Here's the part the per serving math misses. A cheap bottle you stop taking after 3 weeks has an infinite cost per serving, because you paid for a supply you didn't use. The most expensive supplement in most kitchens is the one in the back of the cupboard.
So the ranking has to include format. A gummy you take at breakfast beats a capsule you keep meaning to take, even at twice the price per serving, and that isn't a marketing argument. It's what the empty bottles in your bin already say.
What our bundle tiers change
Multi-buy pricing drops the per unit cost automatically at the qualifying quantity, with no code needed, and the tiers are shown on each product page. On the magnesium bottle, the bundle rate is the difference between a 30 day trial and a 90 day supply at a lower cost per day.
Buy the larger tier only if you've already finished one bottle. Committing to 90 days of something you've never tried is how cupboards fill up, and a cupboard full of the cheapest per serving product is still a cupboard full of things you don't take.
A five second version
Price divided by servings. If two products land within 10 percent of each other, buy the one you'll actually finish and stop optimising. A difference of 6 cents a serving over 365 days is about $22, which is less than one abandoned bottle, and it is certainly less than an hour of comparison shopping.
Frequently asked questions
How do I compare two bottles?Show answerHide answer
Divide the price by the number of servings, then check serving size is the same definition.
Why does the cheap one lose?Show answerHide answer
Usually a smaller count or two-a-day dosing, which quietly halves the supply.
Is the expensive one always better?Show answerHide answer
No. Compare the servings, then compare the form and elemental amount.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
