





🦷 Elevate your oral care game with the power of oxygen!
Colgate Peroxyl Antiseptic Mouthwash delivers a clinically proven 1.5% hydrogen peroxide formula that oxygenates and cleanses your mouth by killing bacteria and flushing out debris. Alcohol-free and gentle, it effectively relieves minor mouth and gum irritations while reducing inflammation. Trusted by thousands, this 300ml mint-flavored rinse is your essential daily defense for healthier gums and fresher oral hygiene.

































| ASIN | B015POPUPU |
| ASIN | B015POPUPU |
| Age Range Description | Adult |
| Best Sellers Rank | 55 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 4 in Mouthwashes |
| Brand | Colgate |
| Country of origin | United Kingdom |
| Country of origin | United Kingdom |
| Customer Reviews | 4.7 4.7 out of 5 stars (3,929) |
| Customer reviews | 4.7 4.7 out of 5 stars (3,929) |
| Date First Available | 12 Nov. 2015 |
| Format | Liquid |
| Item model number | 61035667 |
| Manufacturer | Colgate Palmolive(UK) Ltd |
| Manufacturer contact | Colgate-Palmolive, Guildford, GU2 8JZ. |
| Product Dimensions | 26 x 6.4 x 16 cm; 300 g |
| Product Name | MOUTHRINSE |
| Storage Instructions | How to store peroxyl: do not store above 25°c, do not use peroxyl after the expiry date which is stated on the label after exp. The expiry date refers to the last day of that month. Do not use if you notice any signs of deterioration. |
| Units | 300.0 millilitre(s) |
| Volume | 300 Millilitres |
| Weight | 0.36 Kilograms |
K**S
Great product
This is great stuff. I do get gum ulcers/blisters sometimes but haven't had any since using this. Also seems to be good for keeping tonsil stones at bay. Wouldn't say it keeps your breath lasting fresh, but I don't suppose that's the main aim
J**F
Good quality
Good size and good price
D**N
This is an absolute lifesaver - a must-have for every bathroom cabinet!
I feel like I've tried every trick in the book for those awful, painful mouth ulcers that seem to pop up from nowhere. You know the kind – they make eating and talking a misery for days on end. On the recommendation of my dentist, I picked up a bottle of Colgate Peroxyl, and I am so incredibly glad I did. It’s not an exaggeration to say this has been a total game-changer for me. I'd been struggling with a particularly nasty ulcer on the inside of my cheek, and after just one day of using Peroxyl, the relief was immense. The sharp, stinging pain had dulled to a much more manageable ache. By day three, it was practically gone. I was genuinely amazed. What I really like is the unique, gentle foaming action when you swish it around your mouth. It feels like it's actively cleaning and getting right to the sore spot without being harsh or aggressive. The flavour is a pleasant, mild mint – nothing like the fiery, alcohol-based mouthwashes that can feel like they’re doing more harm than good. Because it's alcohol-free, there's absolutely no painful burn, just a clean and soothing sensation. I've since used it for general gum irritation when I've been a bit overzealous with my brushing, and it has calmed things down beautifully overnight. For anyone in the UK who suffers from occasional mouth ulcers, sore gums, or any minor irritation from braces or dentures, I honestly can't recommend this enough. It provides fast, effective relief and has earned a permanent spot in my medicine cabinet. It’s one of those products you'll be incredibly thankful to have on hand the moment you need it.
B**I
Gentle mouthwash that actually strengthens teeth
I really like this mouthwash. It’s alcohol-free, so there’s no burning sensation, and the mint flavour is fresh but not overpowering. It leaves my mouth feeling clean and helps protect enamel without drying out my mouth. Great for daily use and ideal if you want fluoride benefits without harsh ingredients.
S**F
Helps my gums
Recommended by our dentist. Gentle mint flavour, used to help my gums. Good price.
H**R
Good mouthwash
Thought this would taste horrendous but has a good fresh minty flavour
L**E
Amazing
I love this. I had been using a well known brand for sore gums but it was staining my teeth really badly. My dentist recommend this instead. No more staining and it does a better job with my sore gums.
F**A
Pleasent taste
It's a specific mouthwash Very pleasent taste
R**N
First and last time using a hydrogen peroxide mouthwash, immediately left with canker sore under tongue after stopping use of this, have never experienced any in my entire life, avoid.
K**L
Very nice
S**H
Acheté suite à la recommandation d'une amie. Excellent produit. Je recommande.
N**F
c'est bien trop cher pr ce que c'est.
Trustpilot
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