It depends on your goal. Whey protein isolate and blends support daily protein intake and recovery; mass gainers help if you struggle to eat enough calories; pre-workouts support training intensity; and BCAA/EAA support intra-workout recovery.

Our products are manufactured in GMP/FSSC-certified facilities and are meant for healthy adults as part of a balanced diet. Some people experience mild bloating when starting a new protein — usually settling within a week. If you're pregnant, nursing, under 18, on medication or managing a medical condition, check with your doctor before use.

Yes. Every product sold on onesciencenutrition.in is sourced directly through the brand's authorised import and distribution channel for India. We never sell through unverified third-party resellers, so what reaches you is the same sealed product that leaves the facility.

Check the batch/authentication code printed on the label, and confirm the importer details on the back. If anything looks tampered with, don't consume it — send us photos at help@onesciencenutrition.in, and we'll replace it.

Yes. All imported products carry a valid FSSAI import licence number, an India-specific label with importer details, MRP, batch number, manufacturing and expiry dates, as required under Indian food safety regulations.

We deliver to 15000+ pin codes across India. Orders are dispatched within 12 hours and usually arrive in 2–5 working days for metros and 3–6 working days for other locations. You'll get a tracking link on SMS and WhatsApp as soon as it ships.

Yes, COD is available on most pin codes. Prepaid orders ship faster and often carry an extra discount at checkout.

UPI, all major credit and debit cards, net banking, wallets and EMI on eligible orders. Payments are processed through a secure, encrypted gateway — we never store your card details.

You'll receive a tracking link by SMS, email and WhatsApp once your order is dispatched.

Raise it within24 hours of delivery with an unboxing photo or video and your order ID at help@onesciencenutrition.in. We'll arrange a free replacement or a full refund — no arguments.

Store in a cool, dry place away from direct sunlight, and keep the lid tightly closed. Scoops can settle during transit — dig a little and it'll be there. Slight variation in colour, texture or clumping between batches is normal for natural flavouring systems and doesn't affect quality.