Serious Mass

Stim: low

Flavour / Size

$152.90$169.90

In stock — 99 available · next-day dispatch before 1pm

Pay securely with PayID, Bank Transfer, Bitcoin or USDT at checkout

Serious Mass$152.90

Subscribe & Save 10%

Never run out — choose a recurring delivery and save on every order. Skip, pause or cancel anytime. Select Subscribe at checkout to set up your plan.

30-day money-back guarantee
Free shipping Australia-wide · next-day dispatch before 1pm
$310 minimum order value applies at checkout
Click & collect from 30+ stores nationwide
Earn 5% ApexVita Rewards cashback

Questions about Serious Mass?

Our qualified sports nutritionists can help with advice on flavour, stacking or dosing.

Contains caffeine. Not suitable for children, pregnant or breastfeeding women, or those sensitive to caffeine. Do not exceed the recommended daily dose. Always read the label and follow directions for use.

Description

Optimum Nutrition's Serious Mass is the ultimate weight gain formula. With 1,250 calories per serving and 50 grams of protein for muscle recovery, this instantised powder makes for a sizeable post-workout and between-meals shake. Optimum Nutrition's Serious Mass’ protein blend provides easy-to-digest protein, boosting your muscle protein synthesis and providing quick absorbable protein for better recovery and bigger gains after an intense workout session. Make sure to follow the directions of use at the back of the tub to enjoy the best effects.

Ingredients & Suitability

Key ingredients: See product label.

Suits: See label

Best for: Build Muscle Lose Weight

How to Use

Always follow the directions for use on the product label. As a general guide, mix or take as directed and do not exceed the recommended daily dose. Introduce new supplements gradually and pair them with a balanced diet and regular training for best results.

If you are pregnant, breastfeeding, have a medical condition or take medication, consult your healthcare professional before use. Keep out of reach of children.

Shipping & Returns

Free standard shipping on all orders Australia-wide. Next-day dispatch for orders placed before 1pm AEST (business days). 30-day money-back guarantee — see our returns policy.

Frequently Asked Questions

How do I use protein powder?

Follow the directions for use on the product label — serving sizes vary by brand and formulation. If you're new to protein powder, start with a half serve to assess your tolerance.

Is Serious Mass suitable for everyone?

This is a general-nature supplement and may not suit everyone. Always check the ingredients against your dietary needs and any medical conditions, and consult a healthcare professional if you're pregnant, breastfeeding, or unsure.