From our lab benches to your skincare shelves, we sat down with our in-house scientists to get a drop-by-drop analysis of our all-new Saccharomyces Ferment 30% Milky Toner. Let’s dive into how this lightweight, smoothing and hydrating formulation harnesses the exfoliating benefits of fermented ingredients to set the tone for multi-functional toners.

What sets Saccharomyces Ferment 30% Milky Toner apart from other toners is its dual action benefits. It provides gentle exfoliation using yeast ferment technology, formulated with a high concentration of 30% Saccharomyces Ferment and containing 3% N-Acetylglucosamine, paired with Squalane. This skin-identical molecule helps to hydrate the skin. Squalane also gives the toner its unique milky texture.

Unlike harsher toners or exfoliants, Saccharomyces Ferment 30% Milky Toner is gentle enough to be applied twice daily—even to sensitive skin. Its super-light texture is easy to apply with either a cotton pad or directly from the palm of your hand. Because the consistency is so lightweight, Saccharomyces Ferment 30% Milky Toner can easily layer under serums, oils, or creams.

Let’s dive further into the benefits of our hero ingredient, Saccharomyces Ferment.

We challenged ourselves to formulate a toner that offers gentle exfoliation and lightweight hydration as part of our Prep product category (the skincare stage designed to cleanse the skin and prepare it to receive active ingredients). We selected a Saccharomyces Ferment containing N-acetylglucosamine (NAG). NAG is a naturally occurring molecule in the body as part of hyaluronic acid’s molecular structure. When applied to the skin, NAG has been shown to exfoliate the skin and target the appearance of uneven texture and tone with minimal irritation.

How NAG works is all down to amplifying the skin’s natural process. Our dead skin cells are held together by ‘links’ called corneodesmosomes. While direct acids harshly dissolve or break these links, NAG gently exfoliates the skin by acting like a key on the other side of a keyhole. It occupies the space and prevents cells from joining together and forming dead skin cell links. This helps to speed up the skin’s natural process of shedding dead cells in a much kinder way.

By gently exfoliating the skin, this formulation smooths skin texture and reduces the look of enlarged pores and other textural irregularities, for a brighter, more radiant appearance. It also reduces the look of dark spots, for a more even complexion. And because it was engineered with gentle, moisturizing ingredients, this formula instantly hydrates while promoting a stronger skin barrier.

This is our first venture into fermented ingredients, but our chemists have used ingredients derived from fermentation for quite some time. Biotechnology and fermentation-based manufacturing processes are more common than you think, and an easy way to synthesize materials through microorganisms.

One way we use biotechnology in our Saccharomyces Ferment 30% Milky Toner is with our NAG ingredient. We rely on bacterial fermentation to manufacture engineered molecules of N-acetylglucosamine. Another molecule that is produced through fermentation and featured in Saccharomyces Ferment 30% Milky Toner is Squalane. Historically, NAG was sourced from organisms like algae and plants, and Squalane from the livers of sharks. Biotechnology and fermentation allow us to replicate these ingredients without unnecessary harm to animals, or intensive farming.

To create a super lightweight, yet hydrating formulation, our chemists wanted to include a high skin-softening, also known as ‘emollient,’ content. Typically this can be tricky without compromising on the viscosity of the formulation. Often water-based cosmetic formulations with many emollients need a high stabilizing agent content, also called ‘emulsifier,’ to prevent the formulation from separating, which can lead to a thicker consistency.

Thanks to the microfluidization technology we use that mix the ingredients at incredibly high speeds, we can break the formula down into microscopic droplets and create a stable, lightweight product that doesn’t separate or rely on a high concentration of emulsifiers.

Anyone can benefit from gentle exfoliation. By sloughing off dead skin build-up, you’re revealing clearer, more radiant skin beneath and targeting uneven texture, dullness, and enlarged pores. While there are many harsher exfoliants available, Saccharomyces Ferment 30% Milky Toner’s gentle formulation brings the benefits to all skin types—even sensitive!—with NAG’s gentle exfoliation capabilities paired with the hydrating benefits of Squalane.

Now that you know what’s inside Saccharomyces Ferment 30% Milky Toner, here’s where we recommend adding it to your regimen.

• Apply every day after cleansing, as part of your Prep step. The Prep Step is where we cleanse our skin, preparing it to receive other products. It’s also where the Saccharomyces Ferment 30% Milky Toner should be incorporated right after cleansing and before adding other treatments. Learn how to build your Prep, Treat, Seal regimen here.


• Dispense a few drops onto the palm of your hand and use your fingers to apply it directly to the skin. Alternatively, apply from a cotton pad onto the skin if you prefer.


• Apply twice daily, in the AM and PM. Because the formulation is gentle, it's suitable for all skin types—even sensitive skin.

To prevent over-exfoliation, we do not recommend applying this product with other exfoliating formulas, such as direct acids or physical exfoliators.

You asked, and we listened. Saccharomyces Ferment 30% Milky Toner is our answer to anyone looking for a daily gentle, exfoliant that still delivers effective healthier-looking, radiant skin. Harnessing the power of fermented NAG, hydrating Squalane, and microfluidizing technology, this lightweight formula will fit seamlessly into many daily skin regimens to promote smoother, brighter-looking skin while boosting hydration.

Explore the Saccharomyces Ferment 30% Milky Toner here.