🦷
Mouthwash
Price per fluid ounce across bottle sizes.
The cheapest mouthwash right now is Amazon Basics Multi Action Antiseptic Oral Rinse, Alcohol-Free, Antiplaque, Antigingivitis, Fresh Mint Flavor, 1 Liter (33.8 Fluid Ounces), 1-Pack (Previously Solimo) at $0.131 / fl oz — 10 product lines compared, ranked by real price per fl oz.
💲 Prices and availability verified Aug 11, 2026, not live-updated yet — accurate as of that date and subject to change. Check the retailer for the current price before buying.
Price
–
10 of 10 product lines · sorted by best price per unit
Best value
Amazon Basics
Amazon Basics Multi Action Antiseptic Oral Rinse, Alcohol-Free, Antiplaque, Antigingivitis, Fresh Mint Flavor, 1 Liter (33.8 Fluid Ounces), 1-Pack (Previously Solimo)
$0.131 / fl oz
$4.43 total · 1 size
Crest
Crest Mouthwash Pro Health Complete Clean, CPC (cetylpyridinium chloride) Antigingivitis/Antiplaque, Alcohol Free, Clean Mint, 1 L (33.8 fl oz)
$0.147 / fl oz
$4.97 total · 1 size
Amazon Basics
Amazon Basics Fresh Breath Mouthwash, Blue Mint Antiseptic, Fights Bad Breath and Gingivitis, Refreshing, 1.5 Liters, 50.7 Fl Oz, 1-Pack (Previously Solimo)
$0.156 / fl oz
$7.93 total · 1 size
Listerine
Listerine Cool Mint Antiseptic Mouthwash, Intense Mint, 50.7 fl. oz/1.5 L
$0.158 / fl oz
$7.99 total · 1 size
Crest
Crest Mouthwash Pro Health Multi-Protection, 1L, 2 Pack, 6-in-1 Benefits, Alcohol Free, Enamel Repair, Breath Freshener, Anti Cavity, Fluoride mouthwash, Bad Breath Treatment for Adults, Contains CPC
$0.162 / fl oz
$10.97 total · 1 size
Listerine
Listerine Cool Mint Alcohol Free Mouthwash, Mild Mint, 33.8 fl. oz/1 L
$0.177 / fl oz
$5.97 total · 1 size
Listerine
Listerine Cool Mint Antiseptic Mouthwash, Intense Mint, 33.8 fl. oz/1L x 2
$0.192 / fl oz
$12.98 total · 1 size
Amazon Basics
Amazon Basics Antiseptic Mouthwash, Blue Mint, Fights Bad Breath, Plaque and Gingivitis, 1 Liter, 33.8 Fl Oz, 1-Pack (Previously Solimo)
$0.194 / fl oz
$6.56 total · 1 size
Listerine
Listerine Total Care Anticavity Mouthwash, Intense Mint, 33.8 fl. oz/1L x 2
$0.212 / fl oz
$14.36 total · 1 size
Crest
Crest Pro-Health Advanced Mouthwash, Alcohol Free, Extra Whitening, Energizing Mint Flavor, 946 mL (32 fl oz)
$0.224 / fl oz
$7.17 total · 1 size
Price filters apply to total listing price. Ranked by price per fl oz within your filters.