Description
ON Serious Mass by Optimum Nutrition is a mass gainer that gives you calories, protein and carbs in every serving. Buy ON Serious Mass online at Supplementro – genuine, sealed stock with free shipping across India.
ON Serious Mass
Why choose ON Serious Mass?
- Supports healthy weight and size gain
- Helps you hit high calorie targets easily
- Best for hard gainers and bulking phases
How to use
Mix the recommended serving with milk or water, 1–2 times a day between meals. Always follow the directions on the label.
Why buy from Supplementro?
- 100% genuine, original products
- Sealed packaging, checked before dispatch
- Fast delivery & free shipping across India
- WhatsApp support: +91 70429 09654 (11 AM – 7 PM)
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