Introducing Yeast Protein Isolate
Clinically proven to be a true equivalent to whey, delivering the performance you demand, without compromise.
Complete Protein
Gut Friendly
Third-Party Tested
Planet Positive
No Bloating
Vegan
Gluten-Free
Allergen-Free
YEAST PROTEIN VS. OTHER SOURCES
Most proteins talk big. Spacemilk proves it. This side-by-side comparison shows how Spacemilk outperforms Whey and Plant Protein across nutrition, purity, digestibility, and sustainability.
Science-Backed
Spacemilk
Whey
Plant Protein
No Bloating
Gut-Friendly
Allergen Free
Complete Protein
Slow Release Protein
Ultra Low Heavy Metals
Zero Pesticides
No Farmland Required
Third-party lab tested
The Spacemilk Difference
Not all protein is created equal.
Complete Protein
Digestibility
Vegan
Dairy-free
Hypoallergenic
Environment-friendly
Other
Third Party
Tested
Whey
Inflammatory
& Uses Solvents
Pea
Chalky Flavor &
Pesticide Use
Soy
Hormone
Disruptor
Plant
Blends
Allergens &
Pesticide Use
Complete Protein
Digestibility
Vegan
Dairy-free
Hypoallergenic
Environment-friendly
Other
Third Party
Tested
Whey
Inflammatory
& Uses Solvents
Pea
Chalky Flavor &
Pesticide Use
Soy
Hormone
Disruptor
Plant
Blends
Allergens &
Pesticide Use
Top Trending
DESIGNED FOR THE HUMAN BODY.
PROTEIN SYSTEM
The foundation is a novel Yeast Protein Isolate, providing 20g of complete protein in just 100 calories. It achieves a perfect 1.0 protein quality score (PDCAAS), matching whey for quality, and delivers all nine essential amino acids to optimally support muscle synthesis and recovery.
TEXTURE & FIBER SYSTEM
A smooth, satisfying texture is achieved with a blend of functional, plant-based ingredients. Depending on the flavor profile, the formulas use either Acacia Gum for its prebiotic benefits or Konjac Gum for a richer, creamier mouthfeel. Every formula includes hexane-free Sunflower Lecithin to ensure a perfectly smooth, clump-free mix.
FLAVOR SYSTEM
A zero-calorie, zero-sugar system provides a clean, natural sweetness. The core is a breakthrough blend of Organic Monk Fruit Extract and Thaumatin, a protein-based sweetener from the Katemfe fruit. This is rounded out with clean Organic and Natural Flavors and a touch of Salt to create a delicious taste without any sugar alcohols or blood sugar spikes.
OUR INGREDIENTS
Every ingredient in Spacemilk was chosen after months of research, countless iterations, and an absolute refusal to compromise on purity, performance, or ethics.
Yeast Protein Isolate
Yeast Protein Isolate
Yeast Protein Isolate
Acacia Gum
Acacia Gum
Organic Alkalized Cocoa Powder
Organic Chocolate Flavor
Salt
Salt
Konjac Gum
Sunflower Lecithin
Sunflower Lecithin
Organic Vanilla Flavor
Organic Vanilla Flavor
Organic Monk Fruit Extract
Organic Monk Fruit Extract
Thaumatin
Thaumatin
Meredith S.
Verified Buyer
Love this protein powder
I am so happy I discovered this protein powder… it fills me without making me feel bloated or uncomfortable in my belly. I struggle with tummy issues and this protein has changed the game. I'm vegan and finally found a protein that's good for me! Tastes amazing too!
Cesar P.
Verified Buyer
My favorite protein for the last year
Love the flavor—super clean vanilla that works great as a base for mixing with other ingredients. The powder smells good, blends easily, and feels light and digestible. I don't feel like I'm in a food coma after my morning shake, just fueled and ready to go.
Charla T
Verified Buyer
First time user
I've used this product in my morning smoothies for about 2 weeks now. Very happy with it. No stomach upset or gas (like whey) and it keeps me full for most of the day. I like the unflavored so there aren't any other ingredients and I can add my own berries, etc. Plan to keep using!
Reed B.
Verified Buyer
Lived up to claims in the ads
I've never had a good vegan protein drink that didn't require a blender and never one with this smooth a texture. I'm also super happy about the calorie to protein ratio. I will be a repeat customer and cutting down on Huel.
Michael B.
Verified Buyer
Great protein
This protein has surprised me with how easy it is to digest, the flavor and how it mixes. I have become a big fan. Whey protein always seemed heavy in the stomach.
Deborah H.
Verified Buyer
First time trying
I love this! Unlike other brands I've tried, Spacemilk is not overly sweet, which I really like. In addition, it mixes well, no weird gritty texture and no weird aftertaste!!! Also the macros are good, if you track those.
Reshaping the Future of Food
Our mission is to pioneer a new era for humanity, starting with the very foundation of our potential: nutrition. We are not just creating a product; we are building a future where clean, renewable food production unlocks the ability to nourish life anywhere even beyond Earth.
Through future-focused solutions that challenge tradition, we aim to empower every individual to thrive, not just survive. This is our commitment: to actively reshape our entire food culture to follow a better path and fuel the next stage of human evolution.
frequently asked questions
What is Spacemilk?
Spacemilk is the world's first yeast protein isolate made from non-GMO baker's yeast (Saccharomyces cerevisiae) through fermentation. It provides 20g of complete protein per serving with a perfect 1.0 PDCAAS (Protein Digestibility Corrected Amino Acid Score).
Is Spacemilk vegan?
Yes. Spacemilk is 100% vegan. It's made from baker's yeast, a single celled member of the fungi kingdom, not an animal or plant product, making it suitable for vegans and naturally more ethical than traditional proteins.
What third-party testing does Spacemilk undergo?
Every batch is independently tested for microbial safety, heavy metals (arsenic, cadmium, mercury, lead), and 77 different pesticides. All results are verified to be below detection limits or well within safety standards.
How much Spacemilk should I take per day?
Follow standard protein recommendations of 0.8-1g per pound of body weight from all sources. Most people use 1-2 servings of Spacemilk daily as part of their total protein intake. The founders use 3-4 per day, sometimes more.
Are there any artificial ingredients in Spacemilk?
No. Spacemilk contains no artificial flavors, sweeteners, colors, or preservatives. All ingredients are natural or organic, including natural vanilla and chocolate flavors.
What can I mix Spacemilk with?
Spacemilk mixes well with water, plant milk, dairy milk, or can be added to smoothies, coffee, oatmeal, baking recipes, and other foods. Easy simple smoothies are frozen strawberries, water, and vanilla shake, or frozen bananas for chocolate mousse.