Shoppers report that the MySweetSmile Hyaluronic Gum Serum, currently priced at £24.99, has reduced bleeding and inflammation in their gums within two days of use. The serum, which typically costs £29.99, is on sale with £5 off, working out at 83p per day.
MySweetSmile, known for its award-winning teeth whitening powder, launched the serum last year. It contains a high concentration of Hyaluronic Acid, Xylitol and Panthenol, and is described as being like skincare for the gums.
How the serum works
The hyaluronic acid 'pulls moisture deep into dry, fragile tissue and keeps it there', while the Xylitol component 'keeps the gumline environment fresher through the hours your mouth produces the least saliva, which is when bacteria normally multiply'. Soothing Panthenol (Pro-Vitamin B5) helps calm sore, irritated and sensitive gums.
The brand encourages users to think of gum care like skincare. It states: "You know what happens to skin that never gets moisturised: it turns dry, fragile and cracked. Gums are soft tissue too, under attack all day from food, drink and bacteria, and they dry out just the same, with age, with common medications, and every night as saliva drops during sleep."
"Dry, fragile gums get sore, tender and quick to bleed. Brushing fights the plaque, but it moisturises nothing. This Serum is skincare for your gums."
Shopper reviews and results
Promising to work from day one, the best results are seen after around thirty days, according to the website, with gums noticeably calmer: bleeding less when brushing, and a reduction in flare-ups. The serum is applied by smearing it over the gums after brushing, letting it absorb for two minutes and then disposing of it in the sink.
With over 8,000 reviews on TrustPilot, one user said: "I am suffering from the growth of my wisdom teeth, which makes my gums flare up. The MySweetSmile Gum serum is amazing and helps soothe and decrease swelling. I also have receding gums over my crowns, and within 7 days of use, I am feeling much more confident and sure this has reduced. Thank you so much"
Someone else noted: "I have very sensitive teeth and gum disease, and most products are just not what they claim they are, but these live up to the hype. Within 2 days, my gums felt less inflamed, and the enamel repair gel is AMAZING!"
A third added: "I've had problems with my gums bleeding since my children were born (they're 11 and 9), and despite regular dental checkups and hygiene appointments, it has never really resolved the issue. I also hate how yellow my teeth are. I ordered the 3-for-2 deal of whitening powder as well as enamel and gum serum, as I was worried whitening may make my gums worse. I've been using them 5 days (whitening powder in the morning and enamel and gum in the evening) and from day 2 my gums stopped bleeding! My teeth are noticeably cleaner, and I'm just so happy I keep showing everyone!"
Alternatives and delivery concerns
Other retailers offer similar products. Boots stocks the Corsodyl Medicated Antibacterial Alcohol-Free Mouthwash (300ml) at £5.80 to fight plaque formation and help prevent gum disease. Superdrug sells The Breath Co Healthy Gums Oral Rinse (500ml) for £9.99, combining plaque control with long-lasting freshness.
One of the most common drawbacks noted was not about the serum itself but about delivery. One three-star review on TrustPilot read: "I am only giving 3 stars because of the delivery service. I received an email to say my parcel had been delivered on 30/05/2026. I actually only received it today as it had been left at the wrong address and outside. I absolutely love the products & have ordered numerous times but the delivery has let MySweetSmile down on this occasion."
Another fan of the serum remarked: "The hyaluronic gum serum is fantastic. I had painful gums for weeks and this sorted it in 2 days."
