• Lightly sweet Vanilla flavor
• Supports healthy hair, skin, nails, joints & gut†
• Promotes healthy hair thickness & growth, reduces hair breakage†
• Improves the appearance of crow's feet after 4 weeks†
• Reduces collagen degradation with noticeable results†
• Reduces joint discomfort & helps joints recover faster†
• Reduces knee stiffness at 7 days†
• 10 types of collagen from 4 sources ​
• Made from pasture-raised and grass-fed sources
• Made from pasture-raised and grass-fed sources
• 2 billion CFU* (*at time of manufacture) Bacillus coagulans
• 100% DV of clinically studied Vitamin C, optimized for absorption

†These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

• Promotes muscle growth with 22g of protein
• Supports digestion and immunity with probiotics and digestive enzymes
• Free of hormones, soy, gluten, and sugar
• Vanilla Milkshake flavor

Support uncompromised strength and post-workout recovery with Mölk Protein Powder. This premium formula is engineered with a time-release blend of whey concentrate, whey isolate, micellar casein, and egg proteins to fuel muscle building and repair all day long, plus probiotics and digestive enzymes to aid digestion and regulate immunity.

Designed to fuel hard work, this clean protein powder is naturally sweetened with Reb-M and contains no hormones, soy, sugar alcohols, artificial sweeteners, or added sugars or flavors.

Frequently Asked Questions

What is a “time-release” protein blend?

A time-release protein blend includes various proteins that are fast- and slow-digesting, ensuring a steady release of nutrients to support muscle health throughout the day.

• Supports muscle recovery
• 24g of protein & 9g EAAs per serving
• Slow-digesting
• Chocolate Supreme flavor

Fuel your goals even as you sleep with GOLD STANDARD^® 100% CASEIN™ by Optimum Nutrition. This slow-digesting formula delivers 24g of premium micellar casein, plus 9g of EAAs to refuel recovering muscles when your body goes for hours without food—like at bedtime.

Frequently Asked Questions

What is micellar casein protein?

Micellar casein is a milk protein that is digested more slowly than other proteins, providing an extended release of muscle-building amino acids that help prevent catabolism.

What is catabolism?  

Catabolism is the breakdown of protein. When your body goes for extended periods without food, or when it’s under significant metabolic stress during exercise, it can resort to catabolizing your muscles for energy.

• Supports muscle building and weight gain goals
• 1,250 calories, 50g of protein, and 252g of carbs per serving
• Delivers 25 vitamins & minerals, creatine, and glutamine
• Chocolate flavor

If you’re aspiring to be bigger, have a highly active metabolism, weaker appetite, or on-the-run lifestyle, SERIOUS MASS™ by Optimum Nutrition is for you. This Chocolate weight gain powder packs 1,250 calories, 50g of protein, and 252g of carbohydrates in every serving to help boost calorie intake, support muscle building, and fuel intense workouts.