The Probiotic Boost Serum by Earthtonics is a juicy serum that provides skin with a daily dose of live probiotics + hyaluronic acid to balance the microbiome, restore collagen, and hydrate skin’s deepest layers. This tonic works in tandem with your favorite EarthTonics moisturizer (think Mushroom Mylk or Repair Creme) as a hydration magnet that delivers their potent botanical actives even deeper. Notice visibly plumper, clearer, dewier skin with everyday use. Beloved by those with reactive & sensitive skin.

Just like the gut, your skin has its own microbiome — a living network that supports barrier strength, hydration, and inflammation response. The live probiotics nourish this ecosystem by introducing beneficial strains that naturally crowd out the bacteria linked to irritation and breakouts, helping skin stay balanced, clear, and resilient.

INGREDIENTS:

Rose Hydrosol*, Ylang Ylang Hydrosol*, Hickory Extract*, Vegetal Glycerin*, Hyaluronic Acid, Sodium Hyaluronate, Probiotic Blend (Hansenula / Kloeckera / Lactobacillus / Lactococcus / Leuconostoc / Pediococcus / Saccharomyces / Fig / Lemon Ferment), Sorbitan Oleate, Cellulose Gum, Mycellial Chitosan, Isoeicosane, Citric Acid, Lysolecithin, Sclerotium Gum, Xanthan Gum, Pullulan

*Indicates certified organic

Earthtonics is based in Ojai, California.