How Long Does Body Wash Last? Per Bottle in Use, and On the Shelf
A typical bottle of body wash (around 18–24 fl oz) lasts roughly one month of daily showers for one person using a coin-sized amount on a loofah or cloth. Using it straight from the bottle onto your hand uses two to three times more and empties it in a couple of weeks. Unopened, body wash keeps about three years; once opened, use it within one to two years. Because it's bought by volume, the number to compare is cost per fluid ounce — and at the prices we track a shower's worth costs only a few cents, so lathering it on a loofah instead of pouring it on your hand is the real saving.
By OutletPicks Editorial 5 min read· updated 7/15/2026
What body care costs per fl oz
Live price terciles across the 100 body care products we track, by real cost per fl oz.
| Tier | Cost / fl oz | Example pick |
|---|---|---|
| Budget | $0.33–$1.59 | Jergens Shea and Cocoa Whipped Body Butter… ($0.94/fl oz) |
| Mid-range | $1.63–$2.81 | Sol de Janeiro Body Badalada Vanilla Lotion… ($2.07/fl oz) |
| Premium | $2.84–$3.70 | Molton Brown Re-Charge Black Pepper Body… ($3.48/fl oz) |
The short answer
A standard 18–24 fl oz bottle lasts about one month of daily showers for one person — if you use a coin-sized amount on a loofah, pouf or washcloth. Squeeze it straight onto your hand and you'll use two to three times more, emptying it in a couple of weeks.
Use a tool, not your hand
The single biggest factor is how you apply it. A coin-sized squeeze (about a teaspoon) worked into a loofah or cloth whips into a full-body lather. Poured straight onto wet skin, most of the gel runs off before it foams — you use far more for the same clean. The loofah, not the brand, is what makes a bottle last.
Shelf life: ~3 years, less once opened
- Unopened: about 3 years.
- Opened: use within 1–2 years — fragrance fades, preservatives weaken, and a
water-based gel can eventually spoil if contaminated.
- Check the open-jar symbol on the label (e.g. "12M") for the months it's good after
opening, and toss any bottle that has changed colour, smell or separated.
The cost per shower
Body wash is sold by volume, so cost per fluid ounce is the fair comparison. At the prices we track, a shower's worth costs only a few cents — so the real saving isn't the brand, it's not wasting it: lather a small amount on a loofah rather than pouring it on your hand. If you want the lowest cost per wash outright, bar soap usually beats gel.
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Top 5 cheapest per fl oz right now
Live from the catalog, ranked by real cost per fl oz — cheapest first.
As of July 23, 2026: the cheapest fl oz we track is Jergens Original Scent Dry Skin Body Lotion at $0.33/fl oz. Re-checked daily — the cheapest listings refresh first.
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Frequently asked questions
How long does a bottle of body wash last?
About a month of daily showers for one person from a standard 18–24 fl oz bottle, if you use a coin-sized amount worked into a loofah, pouf or washcloth. Pouring it straight onto your hand uses two to three times more, which empties the same bottle in a couple of weeks. Sharing a bottle or using it to shave as well shortens it further.
How much body wash should you use?
About a coin-sized amount — roughly a teaspoon — worked into a loofah, pouf or washcloth, which whips it into plenty of lather to cover your whole body. A tool matters more than the amount: a loofah or cloth turns a small squeeze into a full lather, while pouring gel straight onto wet skin mostly runs off before it foams, wasting most of it.
Does body wash expire?
Yes, slowly. Unopened body wash keeps about three years; once opened, use it within one to two years. Over time the fragrance fades and preservatives weaken, and a water-based gel can eventually grow mould if contaminated — so toss any bottle that has changed colour or smell or looks separated. Check the little open-jar symbol on the label, which shows the months it's good after opening.
Is bar soap cheaper than body wash?
Usually, per wash. Bar soap tends to cost less per use and lasts a long time, while body wash bundles water, fragrance and packaging into the price. Body wash wins on feel, moisturising formulas and not sitting in a soggy dish. If cost per wash is your priority, a bar is hard to beat; if you prefer gel, buy it by cost per fluid ounce and lather it on a tool to stretch the bottle.