Postbiotic Serum

Nourish. Moisturize. Balance.
Regular price $32.00
Unit price  per 
Mother Dirt Postbiotic Serum is specially formulated to nourish your skin. It contains ingredients like squalane and linoleic acid to moisturize while our powerful blend of postbiotics help balance your microbiome. Your skin will feel smooth, revealing a glowing, healthier-looking complexion.
Why should I subscribe?
One-time puchase: $32.00

Works best with
AO+ Restorative Mist
Product Details
  • A lightweight, fast-absorbing postbiotic serum.
  • Designed for all skin types - including dry, oily, sensitive, or combination.
  • Formulated without synthetic fragrance.
  • Dermatologically and clinically tested.
  • Noncomedogenic.
  • Can be used as part of our Active Probiotic System for enhanced results.
  • Acts as a primer for our patented AO+ Restorative Mist—formulated with over 3+ billion CFUs in every bottle.
  • Cruelty-free and vegan.
Squalane, Caprylic/Capric Triglyceride, Aspergillus Ferment, Saccharomyces Ferment, Linoleic Acid, Phytosterols, Phospholipids, Tocopherol
Start with a small drop and gently massage onto clean skin.
  • Contains a powerful blend of postbiotics to lock in moisture and restore balance.
  • Made with plant-based ingredients that nurture your skin without feeling greasy or heavy.
  • Contains Tocopherol, a known antioxidant to help calm irritation.
  • Strengthens and repairs the skin's natural barrier.


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  • Enjoy 10% off on all your auto-ship orders
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  • VIP advanced access to new products at a discounted rate
  • VIP early access to our bi-annual sales
  • Pause or cancel anytime

Our Active Probiotic System

When used as a complete system, our formulas are designed to work together to biologically repair and restore your skin microbiome. Our supporting products act as a primer for our patented live and active AO+ Restorative Mist, delivering maximum results and total skin wellness.



Moisturizes and helps protect the skin.

Caprylic/capric triglyceride

Softens and replenishes skin.


Improve skin barrier function to keep water in the skin

Linoleic Acid

Fatty acid that is essential for healthy skin.

Saccharomyces Ferment

Helps soften and moisturize dry skin.

Aspergillus Ferment

Balances and conditions skin.