Best Mouthwashes Deals Online in the UK (25 Deals Found)

Last Updated - 01/02/2026 Sort By:

Best Choice
Colgate

New
COLGATE Plax Cool Mint Mouthwash 4x500ml Fresh Breath mouthwash Instant Long-Lasting Freshness no Burn Experience 24/7 P
WHAT YOU'LL GET: Includes four (4) 500ml Colgate Plax Cool Mint Mouthwash bottles featuring a vegan formula without any

£8.96 £11.00
27% Off
Colgate

New
COLGATE Plax Cool Mint Mouthwash 4x500ml Fresh Breath mouthwash Instant Long-Lasting Freshness no Burn Experience 24/7 P
WHAT YOU'LL GET: Includes four (4) 500ml Colgate Plax Cool Mint Mouthwash bottles featuring a vegan formula without any

£8.06 £11.00
New
Biotene Dry Mouth Mouthwash, 500ml | Free & Fast Delivery UK
Biotene Dry Mouth Mouthwash, 500ml | Free & Fast Delivery UK.

£9.99
25% Off
Colgate

New
Colgate Peroxyl Antiseptic Mint Flavour 300ml Mouthwash, Relieves Minor Mouth and Gum Irritations, (Pack of 1)
Unique Oxigenating cleansing action kills bacteria, prevents germs from spreading and flushes out debris & plaque

£3.99 £5.29
New
Biotene Dry Mouth Moisturising Mouthwash, 500 ml
Biotene can help relieve dry mouth symptoms. Keep out of reach of children. Do not swallow. Not for use by children 12 y

£10.99
Best Value
Colgate

New
Colgate Peroxyl Antiseptic Mint Flavour 300ml Mouthwash, Relieves Minor Mouth and Gum Irritations, (Pack of 1)
Unique Oxigenating cleansing action kills bacteria, prevents germs from spreading and flushes out debris & plaque

£3.59 £5.29
Corsodyl

New
Corsodyl Antibacterial Mouthwash, Original Alcohol Free, Prevents Gum Disease & Treats Bleeding Gums, 300 ml (Pack of 2)
The information below applies to each unit in the pack

£9.28
New
Parodontax Active Gum Protection Refreshing Daily Mouthwash 500ml Made in France
Form a protective shield to prevent the reoccurrence of plaque. Extra fresh mint flavour.

£9.90
Corsodyl

New
Corsodyl Antibacterial Mouthwash, Original Alcohol Free, Prevents Gum Disease & Treats Bleeding Gums, 300 ml (Pack of 2)
The information below applies to each unit in the pack

£8.82 £9.28
New
Biotène Dry Mouth Mouthwash, Moisturising for Dry Mouth Relief, 500ml UK No 1
Freshens breath. Specially formulated for people with dry mouth. Item form Liquid. Unit count 500.0 millilitre.

£12.99
33% Off
The Breath Co.

New
The Breath Co. Alcohol Free Mouthwash. Dentist Formulated Oral Rinse for 12 Hours of Fresh Breath, Icy Mint Flavour, 500
12 Hours of Fresh Breath: The Breath Co Fresh Breath Oral Rinse fights bad breath for 12 hours with our unique pH balanc

£6.67 £9.99
37% Off
The Breath Co.

New
The Breath Co. Alcohol Free Mouthwash. Dentist Formulated Oral Rinse for 12 Hours of Fresh Breath, Icy Mint Flavour, 500
12 Hours of Fresh Breath: The Breath Co Fresh Breath Oral Rinse fights bad breath for 12 hours with our unique pH balanc

£6.34 £9.99
New
TePe Hydrating Mouth Gel for Dry Mouth, mild Peppermint, Mouth Gel to Ease The
The practical pump makes it easy to use as much as you need. Perfect on-the-go. Mild peppermint: The mild peppermint fla

£5.98
Eludril

New
Eludril Classic Oral Rinse 500 ml

£15.99
New
TePe Hydrating Mouth Gel for Dry Mouth, mild Peppermint, Mouth Gel to Ease The
For people who suffer from a very dry mouth, this gel creates a thin protective layer for long-lasting comfort. Use as o

£5.90
Eludril

New
Eludril Classic Oral Rinse 500 ml

£15.99
New
Biotene Dry Mouth Mouthwash, 500ml | Free & Fast Delivery UK

£9.71
New
Tonsil Stone Remover Kit | Remove & Prevent Tonsil Stones | Sore Throat Relief
TONSIL STONE REMOVER KIT Tonsil related problems, such as chronic tonsillitis (inflammation of the tonsils) and tonsillo

£11.80
New
TePe Hydrating Mouth Gel for Dry Mouth mild Peppermint Mouth Gel to Ease The
The practical pump makes it easy to use as much as you need. Perfect on-the-go. Mild peppermint: The mild peppermint fla

£7.72
New
GUM Gingidex Short Term Treatment Mouthwash 300ml
GUM Gingidex Short Term Treatment Mouthwash 300ml is a mouthwash that helps to improve the health of sensitive periodont

£10.24
New
Weleda Myrrh Mouthwash 50ml
Weleda Myrrh Mouthwash 50ml is a concentrated natural formula for fresh breath. This unique concentrate is composed of p

£12.05
New
lavera Mouthwash Complete Care - Alcohol-Free -Fluoride-Free - Organic Mint and
Experience the lavera sensation of naturally clean teeth and healthy gums: Our highly effective alcohol- and fluoride-fr

£16.31
New
Optima AloeDent, Aloe Vera Mouthwash Fluoride Free, Natural Action, Vegan, Crue
Aloe Dent Aloe Vera Mouthwash 250ml.

£8.18
New
Biotène Dry Mouth Mouthwash, Moisturising & Alcohol Free Oral Wash for Dry 500ml
Specially formulated for people with dry mouth. Unit count 500.0 millilitre. Item form Liquid. Flavour Fresh Mint.

£11.79
New
2x Gum Mouthwash Junior 6+
Shop explore FEEDBACK Contact us 2X GUM MOLDUARY JUNIOR 6+ Composed for 93% by ingredients of natural origin and designe

£16.56

25 Mouthwashes deals are available from: Amazon, eBay stores, starting from £3.59.
The biggest discount we found is 37% on The Breath Co. Alcohol Free Mouthwash. Dentist Formulated Oral Rinse for 12 Hours of Fresh Breath, Icy Mint Flavour, 500 ml at Amazon.
The lowest price we found is £3.59 while the highest is £16.56.
Prices for the best Mouthwashes deals average at £9.91.
Last updated on February 1, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Mouthwashes.