Most supplement gummies carry a best by date rather than a hard expiration, and a 90 count bottle taken at two gummies a day works out to 45 servings, which you'll finish well before the printed date. What actually ends a bottle early is heat and humidity, not time.
What a best by date actually says
Best by is a quality statement from the manufacturer, not a safety deadline handed down by a regulator. It's the date through which the maker expects the product to hold its labeled potency and texture under reasonable storage. Past that date the manufacturer stops standing behind the numbers on the panel, and it isn't claiming the product turns unsafe either.
Those are two different ideas, and shoppers collapse them all the time. A date is a promise about quality. It isn't a switch that flips at midnight.
Why supplements aren't dated like food
There is no federal requirement that a dietary supplement carry an expiration date at all, so a missing date on a bottle isn't a red flag by itself. What you do want alongside any date is a lot number, because that's the string a manufacturer uses to trace a batch if something goes wrong.
That matters more than people expect. If you ever have a question about a bottle, the lot code is the only thing that identifies which run it came from, and it's printed on the bottle rather than on the formula.
Where to find the date on the bottle
Check the bottle neck first, then the base, then the crimped edge of the seal under the cap. Lot and date are usually printed or laser etched in one of those three places, and on an amber plastic bottle the code can be nearly the same color as the plastic, which is why it seems invisible until you tilt it under a lamp.
The outer box often repeats the same code in larger type. If you've already recycled the box, take a photo of the bottle code with your phone so you have one copy that isn't going anywhere.
Heat is what changes gummies first
A gummy is a sweetened base with a gelling agent holding water in it, and heat moves that water around. A bottle left in a hot car can soften, sweat inside the jar, and fuse into a single lump at the bottom in one afternoon. None of that is a date problem. It's a handling problem, and it doesn't care how far away the best by date is. One afternoon is enough.
Humidity runs the same damage at a slower pace. Every time you open a bottle in a steamy kitchen, moist air goes in, and the desiccant packet, if the bottle has one, absorbs it until it can't.
So the storage rule is boring and it works: cool, dry, dark, and closed. A cabinet away from the stove beats a counter near the kettle, and a bathroom shelf is the worst spot in most homes because of the shower.
Counting servings so the bottle doesn't outlast the date
Do the arithmetic before you buy two bottles at once. The aged garlic extract gummies come 90 to a bottle at two gummies daily, which is 45 servings, and each serving also carries 60 mg of CoQ10 alongside the garlic extract, so one bottle is doing two jobs at once.
The grass fed beef liver gummies come 60 to a bottle, and how many days that is depends entirely on the serving size printed on its own panel. Read it rather than assuming, because a 60 count bottle at two a day and one at one a day are not the same purchase at the same price.
The same check applies to a 90 count bottle of mastic gum gummies with zinc carnosine and DGL. Divide the count by the serving on that label, and you'll know whether the bottle will still be sitting there when the date arrives.
Capsules and gummies don't age the same way
A capsule is dry powder inside a shell, and it's far less bothered by a warm week. A gummy is the finished, hydrated product sitting in open air every time you unscrew the lid, which is why format deserves a thought when you choose how to stock a shelf.
If you live somewhere hot, or your supplements currently live in a bathroom cabinet, that context should influence what you buy. The capsules collection exists partly for that reason, and the gummies collection is worth browsing with storage in mind rather than flavor.
Keeping an open bottle in good shape
Keep the lid closed tight, keep the bottle out of the light, and don't decant a month of gummies into a pill organizer. An organizer isn't airtight in the way the original bottle is, and the original bottle is where the desiccant lives.
A clumped bottle isn't automatically finished, either. Separate what you can, check for an off smell or visible moisture, and make your own call. If you're stocking a shelf rather than a single bottle, the daily essentials collection is where the everyday bottles sit, and a quick look at the dates is worth doing when something is on sale.
Do gummies expire or just lose potency?
A best by date covers quality, including potency and texture, rather than a safety cutoff. Past it, the maker simply stops standing behind the numbers printed on the label.
Should I refrigerate supplement gummies?
Only if your kitchen runs hot. A cool, dark cabinet is the normal target, since the fridge adds a condensation risk every time you take the bottle out and open it.
How long do gummies last after opening?
Supplement labels rarely print a post opening window, so the best by date is your only printed guide. Store the bottle well and use the date as your line, because the panel usually won't give you a second number.