Contains 1 billion CFU of L. bulgaricus and S. thermophilus per teaspoon for optimal probiotic benefits
No preservatives, artificial colors, flavors, or sweeteners for a pure, natural yogurt experience
Made from real Bulgarian yogurt starter with a proven, century-old recipe for consistent results
Easy-to-use powder format allows for up to 30 quarts of yogurt per bottle
Suitable for vegetarians and various dietary preferences, including gluten-free and non-GMO
Summarized by Shop
Experience true probiotic yogurt. Our authentic starter culture delivers living L. bulgaricus and S. thermophilus — the strains that built yogurt’s global reputation for digestive health. Make up to 30 quarts of creamy, protein-rich yogurt free of additives, gums, or sweeteners.
Authentic live cultures that support your health
L. bulgar
Net Weight
49.6 g (1.75 oz)
Probiotic Content
1 billion CFU (L. bulgaricus lb 51) and 1 billion CFU (S. thermophilus BC 122) per teaspoon
I use a teaspoon with 1/2 gallon of Eden Foods' original soy milk to make a nice yogurt. I also use a little less than 1/4 teaspoon, along with a couple other probiotics, to ferment about 2 cups of steel cut oats in maybe a little more than 3 cups of water in which a teaspoon of salt and 1/2 teaspoon of honey have been dissolved, having let the salted water off-gas for a day before adding the honey and probiotics. After fermenting for about a day, the quart jar in which it is done is quite full.
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Paul · August 17, 2026
We have been using Natren's Yogurt Starter for over a year and love how it makes yogurt. Natren's starter has all of the essential bacteria required for the best gut health and when added to organic A2/A2 grass-fed milk produces thick and creamy yogurt which not only tastes great (i.e. no sour taste) but is great for you! I highly recommend this yogurt starter.
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Kenneth · July 30, 2026
Always top quality!
Plus, I had delivery trouble - delayed. It arrived after 7 days and was hot to the touch. Natren replaced the order, no problem. Yay!