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How do I apply The Probiotic Hyaluronic Serum?

Apply 4 to 5 drops to cleansed skin as needed.

When is the best time to use The Probiotic Hyaluronic Serum?

Our Hyaluronic Serum can be used at any time of day, whenever your skin is feeling thirsty. We recommend using a few drops under your face oil (or cream) first thing in the morning to keep your skin adequately hydrated all day long.

In which step of my beauty routine do I use The Probiotic Hyaluronic Serum?

We recommend using our Hyaluronic Serum after toner and before a facial oil (or cream) when your skin is still slightly damp to draw that water content into the skin. After applying the Hyaluronic Serum, a face oil or one of our oil serums will lock in that moisture for perfectly hydrated skin. 

Is The Probiotic Hyaluronic Serum suitable for sensitive skin?

Yes! Our Hyaluronic Serum was specifically developed for soothing and hydrating sensitivity, so it’s ideal for sensitive skin types. The formula is free from drying alcohols, synthetic preservatives and fragrances, essential oils or other potentially skin-irritating ingredients that can exacerbate sensitive skin concerns. We include scientifically proven ingredients such as active probiotics, which have been proven to support a strong, healthy skin barrier that’s necessary for calming sensitivity. 

ruhi TIP: We always recommend testing a new skincare product on a small area of skin before adding it to your skincare routine. This way, you can easily rule out an allergic reaction to any of the ingredients.

Why do you use a transparent bottle for The Probiotic Hyaluronic Serum?

The active ingredients used are stable to light and oxidation, so we can use a transparent glass bottle without compromising the formula’s effectiveness.

What makes the ruhi Hyaluronic Serum so special?

For one, we use state of the art active ingredients that have clinically proven efficacy in generous concentrations, including our probiotic active ingredient, which has won the BSB Innovation Award. Not only are these novel active ingredients costly and rarely used in products, if only in small quantities. We’ve chosen to up the standard by always using the comparatively high concentration of an active ingredient—even if this makes our product costs higher.

We only use effective, natural ingredients of the highest quality in our formulas. And, whenever possible, these high-quality, natural, all-vegan ingredients are sourced organic or come from wild collection. Instead of packing our serums full of water, we use high-quality cold-pressed organic oils or, as in our Hyaluronic Serum, organic juice directly from the aloe vera plant. (There is only the smallest amount of water in our serum, as most plant extracts are dissolved in water.)

Our Probiotic Hyaluronic Serum is an innovative in-house development on which we have worked for many months in close collaboration with our experienced natural cosmetics laboratory. Such in-house development is a lengthy and costly process, which is why many brands resort to cheaper and faster-to-produce pre-made standard formulas. For us, however, this was out of the question because our innovative formulation ideas can only be realised within the framework of in-house development where there is the creative freedom to bring to life effective, bioactive, natural skincare.

If you have any further questions, please email us at We will try to answer your question as soon as possible.