90-day money-back guarantee

Last chance to buy 1, get 1 free!

We don’t want you to miss this sweet deal. For a limited time, buy 1 Organic Plant Protein and you’ll get 1 FREE. Mix and match any of our 7 award-winning proteins to find the flavors you favor.

90-day money-back guarantee

Why KOS?


KOS is $1.75 per meal. Buy more, save more with our bundles.


Plant based, USDA-certified organic, and NEVER fake.


Our Organic Plant Protein is rated #1 for taste.


We deliver straight to your door with a money-back guarantee.

Better nutrition, better life

3 ways to enjoy

Mix 2 scoops in 8–10 oz. of cold water or plant milk

Add 2 scoops to your smoothie or shake

Substitute for flour in your favorite baking recipes

Blend it, bake it, BOOM

Whether you’re a chocolate kinda gal or a blueberry-muffin guy, our award-winning flavors are super tasty and versatile. No animal products, no sketchy fillers or additives, and no gritty, chalky texture.
Buy 1, Get 1 Free

90-day money-back guarantee

America’s best-tasting protein powder

No whey, dude

And no dairy, soy, or gluten, either. Just organic, high-quality ingredients from responsibly managed farms.

Winner, winner, plants for dinner

Or breakfast, or lunch. Plant proteins are a heart-healthy way to boost energy and help you feel full longer.

Flavor savior

Self, Popular Science, and Women’s Health all agree: KOS is the best-tasting protein powder out there.

200,000+ happy customers and counting

“Absolutely LOVE the taste. Other protein powders I’ve had in the past are either chalky, too sweet, too heavy, or filled with ingredients I can’t even pronounce. KOS is delicious.”

Bianca L.

Bianca L.

“Great, quick vegan breakfast. On my early work days, I'm able to blend it up with fruit and oat milk for an on-the-go breakfast.”

Jennifer D.

Jennifer D.

“This is a great meal replacement/protein powder. It has high-quality ingredients, it mixes well, and tastes delicious.”

Elliott G.

Elliott G.

Created by potrace 1.16, written by Peter Selinger 2001-2019

Hurry! Final call to get your FREE Plant Protein

When you buy 1 Organic Plant Protein, you’ll get 1 free, for a total savings of $34.99. Just choose your proteins at checkout to start eating more plants.
Buy 1, Get 1 Free

90-day money-back guarantee

Created by potrace 1.16, written by Peter Selinger 2001-2019

Got questions? We’ve got answers!

Are KOS products certified organic?
Nearly every ingredient is certified organic and therefore free of hormones, antibiotics, pesticides, artificial sweeteners, colors, and GMOs. When you check out the ingredient panel of our labels, you’ll see “organic” in front of the specific ingredients that are certified organic.
What if I purchase and don’t like it?
We stand behind the quality of our products and want to make sure our customers are completely satisfied. Your satisfaction is guaranteed for a full 90 days from the date of purchase.
Is KOS tested for heavy metals?
Yes, all KOS products are thoroughly screened for a full spectrum of contaminants, including heavy metals. KOS protein contains more than a dozen ingredients, each of which is subjected to an individual screening—as is the whole of the batch—in both pre- and post-production phases. This full-spectrum screening for contaminants and heavy metals is managed in strict accordance with USDA Organic and CCOF compliance standards.
Where is KOS made?
Our formulas are made in sunny Southern California, and the ingredients are certified by the United States Department of Agriculture (USDA) and California Certified Organic Farmers Association (CCOF).