The Story Behind Leftose®: A Natural Enzyme with a Long History
When it comes to natural wellness, few ingredients have stood the test of time like lysozyme — a powerful enzyme discovered by Alexander Fleming, the same scientist who found penicillin, the world’s first antibiotic. Lysozyme is found in everyday sources like egg whites, as well as in areas of the human body such as the mouth, nose, and throat.
In these areas, it plays a key role in supporting the body’s natural ability to maintain a healthy and comfortable environment by helping to protect against unwanted bacteria and keeping things in balance.
Thanks to its natural origins and long track record of safe use, lysozyme has become a trusted ingredient in many wellness products worldwide — and it’s the foundation and hero ingredient of the Leftose® range.
Generations of Trust in Singapore Families
For over 40 years, Leftose® has been a household name in Singapore. Families rely on it for everyday support, while doctors, pharmacists and healthcare professionals dispense it regularly.
The Leftose® range is designed to support comfort in the upper respiratory tract, especially the mouth, nose, and throat. Made with naturally derived lysozyme, Leftose® products are non-drowsy, well-tolerated, and available in several convenient dosage forms for all age groups.
Find the Right Leftose® for Your Family
Each product in the Leftose® range is formulated to meet the needs of different users — from young children to busy adults.
A gentle, sugar-free, and alcohol-free formula ideal for young children. Leftose Syrup is well-tolerated and comes in a taste that kids are very willing to accept.
Suitable for children aged 1 year and above
Dosage (as stated on pack):
1 – 2 years old: 1 – 2ml, 3 times daily
3 – 6 years old: 2 – 3ml, 3 times daily
7 – 12 years old: 5 – 6ml, 3 times daily
- Sugar-free
- Alcohol-free
- Shake well before use
Leftose® Lozenges (Mint / Honey Lemon)
Perfect for teens and adults, especially those who are frequently speaking or on the go. These lozenges are easy to carry and tastes good while soothing throat discomfort.
Suitable for ages 7 and above
Dosage:
Dissolve 1 lozenge slowly in the mouth
Every 2-3 hours (up to 8 per day)
- Available in Mint and Honey Lemon
- Sugar-free
Leftose Max Lozenges (Blackcurrant with Vitamin C & Zinc)
A stronger option designed for older teens and adults, Leftose Max adds the benefits of Vitamin C and Zinc for additional daily support.
Dosage:
Dissolve 1 lozenge slowly in the mouth
Every 2-3 hours (up to 6 per day)
- Blackcurrant flavour
- With added Vitamin C & Zinc
For adults who prefer tablets over lozenges or syrup, this first and original form of Leftose® offers a convenient daily option to support upper respiratory comfort.
For adult use only
Dosage:
2-3 tablets orally, 3 times daily
Take with water after meals
- Easy to carry and swallow
Why Choose Leftose®?
- Over 40 years of proven results
- Contains naturally derived lysozyme
- Formulated in syrup, lozenge, and tablet forms
- Suitable for different age groups
- Sugar-free and alcohol-free
- Widely available across Singapore
Where to Buy Leftose® in Singapore
You can find Leftose® at:
- Glovida
- Guardian
- Watsons
- Unity
- Most clinics, hospitals and independent pharmacies
- Online via Shopee, Lazada, and RedMart
Speak to a Healthcare Professional
While Leftose® is a well-known name in wellness support, everyone’s needs are different. Always consult your pharmacist or healthcare provider if you're unsure which product is right for you or your child.
Conclusion: Backed by Science, Trusted by Families
With its origins in one of nature’s most remarkable enzymes, and a legacy of trust across generations, Leftose® offers natural support for everyday wellness. Whether you’re looking for a product for your child, yourself, or an elderly family member, there’s a Leftose® dosage form to suit your lifestyle.
