Third-Party Tested for Purity & Quality
Feel confident with every servingMix one scoop with 8–12 oz of water by preference. For a boost, blend with frozen fruit and water for a simple smoothie.
Standard shipping takes 3-5 business days. Free shipping on orders $49+. Returns accepted within 30 days of purchase.
Yeast Protein Isolate
Chocolate Mousse
Gut Friendly
Sugar Free
No Allergens
No Artificial Ingredients
Choose Pack Qty
Choose Flavor
Chocolate Mousse
Unflavored
Vanilla Shake
- Save 35% First Order. 11% Ongoing
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30-Day Returns
Fast, Free Shipping $49+
Third-Party Tested for Purity & Quality
Feel confident with every servingMix one scoop with 8–12 oz of water by preference. For a boost, blend with frozen fruit and water for a simple smoothie.
Standard shipping takes 3-5 business days. Free shipping on orders $49+. Returns accepted within 30 days of purchase.
100% Natural Ingredients
No allergens. No fillers. Nothing artificial.
No allergens. No fillers. Nothing artificial.
Yeast Protein Isolate
Complete, allergen-free protein derived from yeast.
Organic Alkalized Cocoa Powder
Real cocoa for smooth, rich chocolate taste without bitterness.
Organic Chocolate Flavor
Authentic, full chocolate taste in every serving.
Salt
Brings out deeper cocoa notes and supports healthy hydration.
Konjac Gum
Prebiotic fiber for creamy thickness that supports healthy digestion.
Sunflower Lecithin
Supports cell health and helps everything mix silky smooth.
Organic Vanilla Flavor
A subtle addition that enhances and deepens the chocolate flavor.
Organic Monk Fruit Extract
Zero-calorie natural sweetness with antioxidant benefits.
Thaumatin
Natural sweetener from the Katemfe fruit for rich taste, zero sugar.
Yeast Protein Isolate
Complete, allergen-free protein derived from yeast.
Yeast Protein Isolate
Complete, allergen-free protein derived from yeast.
Acacia Gum
Feeds your gut's good bacteria and supports smooth digestion.
Salt
Enhances vanilla's natural aroma and supports healthy hydration.
Sunflower Lecithin
Supports cell health and helps everything mix silky smooth.
Organic Vanilla Flavor
Clean, real vanilla for balanced, natural taste.
Organic Monk Fruit Extract
Zero-calorie natural sweetness with antioxidant benefits.
Thaumatin
Natural sweetener from the Katemfe fruit for rich taste, zero sugar.
A Cleaner Way to Make Protein
1
Cultivate
A clean, controlled start—no animals, no farms, no contaminants.
We begin with baker’s yeast, which is grown in stainless-steel fermenters and fed simple plant-based sugars such as molasses, a byproduct of the sugar industry.
2
Isolate
Preserves amino acids while removing everything your body doesn’t need.
Using mild heat and natural food enzymes, the yeast’s own enzymes break down the cell walls, releasing the purified protein inside.
3
Purify
Preserves amino acids while removing everything your body doesn’t need.
High-speed centrifugation separates the protein, which is then carefully washed, pasteurized, and gently dried into an ultra-pure powder.
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.
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
30-Day Returns
Fast, Free Shipping $49+
Designed for Everybody
Zero Bloating
Created with a neutral pH of ~7, Spacemilk is exceptionally gentle on your digestive system. Get powerful nutrition without the bloating or discomfort common with other protein supplements.
A Perfect Protein
With a perfect 1.0 PDCAAS score, our yeast protein isolate matches the nutritional quality of whey and provides all nine essential amino acids. It’s the complete, clean protein your body needs to build, repair, and thrive.
Lasting Satiety
Spacemilk is a slow-digesting protein that provides a sustained release of amino acids to help curb hunger and keep you focused for hours. It’s the ideal choice for weight management without nutritional compromise.
Beyond Vegan
We are 100% animal-free, but our commitment goes deeper than traditional plant-based proteins. Our clean fermentation process uses no arable land, creating a truly compassionate protein that is better for you and every living thing
30-Day Returns
Fast, Free Shipping $49+
Every Batch is 3rd Party Tested
Most brands hide their numbers. We publish ours.
Vegan Protein
Whey Protein
Spacemilk Protein
Based on independent third-party heavy metal testing. Daily safe limit of 0.5 mcg based on California Prop 65 standards.
Data represents average contamination levels across leading brands in each category.
Protein That Finally Feels Right.
Protein, Reinvented at the Molecular Level
Traditional protein sources come with trade‑offs — contamination, digestion issues, and environmental cost. Spacemilk changes that by creating protein through clean, controlled fermentation.
Frequently Asked Questions
Spacemilk is derived from yeast fermentation rather than dairy or plants, making it naturally allergen-free, ultra-clean with heavy metals ten times below Prop 65 standards, and 100% pesticide-free.
Yes. Spacemilk has a perfect 1.0 PDCAAS score and contains all nine essential amino acids, nutritionally equivalent to whey and egg proteins.
Yes. Spacemilk is clinically proven to be a true equivalent to whey, delivering a complete amino acid profile that supports muscle growth, recovery, and performance — without dairy.
Spacemilk has a neutral pH of ~7, making it gentle on the digestive system. Unlike dairy proteins that can cause lactose intolerance issues or plant proteins that may contain hard to digest plant material and anti-nutrients, Spacemilk is pure protein isolate with no digestive irritants.
Each serving contains 20g of protein with only 100-120 calories depending on the flavor (Unflavored has 100 calories, Vanilla has 110, Chocolate has 120).
- JPJulie P.Verified BuyerReviewingYeast Protein IsolateI recommend this productRated 5 out of 5 stars18 hours agoCoffee Creamer
My DR ordered me to get more protein because of osteoporosis. I searched and searched, trying various protein powders, for one that I could stir into my morning cup of coffee. Ding ding ding! Spacemilk is the winner.
- PGPaul G.Verified BuyerReviewingYeast Protein IsolateI recommend this productRated 5 out of 5 starsYesterdayA Difficult Recipe.....
..... this is not. Almost every day I drink it with water, especially when I go to the gym.
The days I don't go it's water, frozen fruits, some almond butter & ice for a smoothie.
It tastes really good & I absolutely feel more energized.
- SKSonja K.Verified BuyerReviewingProtein | UnflavoredI recommend this productRated 5 out of 5 starsYesterdayLactose intolerant
Put it in my tea almond milk latte every morning. No bloat!
- KSKenneth S.Verified BuyerReviewingYeast Protein IsolateI recommend this productRated 5 out of 5 starsYesterdayYum Chocolate Protein
Excellent taste and mix as well! I love it with peanut flour protein. Thank you for what you do!
- HHHoward H.Verified BuyerReviewingYeast Protein IsolateI recommend this productRated 5 out of 5 stars2 days agoI found the one...
I've tried just about all of the protein powders, meat, plant and otherwise based, and many are quite good. However, Spacemilk is the best for several reasons in addition to the ethical and environmental superiority. I'm talking about the Spacemilk flavors!!! The folks at Spacemilk who formulate the taste profiles are the best in the industry by quite a large margin. This goes for the Vanilla, Chocolate and especially the Pumpkin Spice flavors. All are better than <fill in other brands here> hands down.
Additionally I get zero bloating, upset or any digestive symptoms with Spacemilk.
Thank you folks for coming up with this great food!