Any Time Someone Compliments My Skin, It's Because of One of These Moisture-Boosting Products

Most of us would think of the gut when we hear the term "probiotic", but these "friendly bacteria" (and their byproducts) are important in relation to our skin too.

I’ve valued probiotic skincare in my routine for a while now, since premature perimenopause has been giving me hormonal acne breakouts on one side of my jaw. I use it primarily for supporting my skin’s barrier and a healthy microbiome (the micro-environment on the surface of the skin), however, it has a host of other benefits too. Before you get worried that this is yet something else you need to add to your skincare routine, know that probiotic products also contain a lot of the other main skincare ingredients you likely already use, so think of it as killing two (or even three) birds with one stone.

Probiotic skincare can be difficult to fully understand—even for beauty editors like me—so I spoke to some experts on the subject to find out more: Dr Nyla Raja, dermatologist and cosmetic doctor; Dr Marie Drago, doctor in pharmacy and founder of probiotic skincare brand Gallinée; and Lida Alexiou, scientific director of KORRES Group. I had them answer all of the key questions about probiotic skincare to give you a good general understanding of what it is and how it could benefit you. Then, I’ll take you through a rundown of the best probiotic skincare products I recommend, across all price points. Let’s get stuck in!

Laura Pearson @alifewithfrills

(Image credit: @alifewithfrills)

What Is Probiotic Skincare?

Dr Marie Drago tells us that whilst "there is no strict definition, in the beauty sector, it means either skincare containing parts [of] or whole bacteria, or skincare to promote the skin microbiome. The strict definition of probiotics implies that bacteria are alive in the products, but that is extremely rare, so I prefer the term 'microbiome skincare.' I prefer it because it’s not just by putting bacteria in a product that it can help the microbiome; the whole formula has to be thought out and designed to support the resident bacteria," she explains.

"Probiotic skincare incorporates ingredients derived from beneficial bacteria or their byproducts, designed to nurture the skin’s natural ecosystem," says Lida Alexiou. "These products work to maintain the microbiome's balance, promoting a fortified skin barrier and a smoother, more resilient complexion." She also believes that understanding probiotic skincare allows us to realise "that bacteria are not always bad; that they play a vital role in the human body and that billions of microorganisms live and work together on the skin's surface to protect and re-enforce skin resilience."

So, in cosmetic terms (unlike in the food industry), "probiotic skincare" generally does not mean that the product contains live bacteria, but rather that the bacteria is stabilised and formulated to allow the product to remain well-preserved. It can also refer to products that contain the byproducts of bacteria.

bathroom cabinet full of skincare

(Image credit: @emmahoreau)

Is Probiotic and Fermented Skincare the Same Thing?

According to Dr Nyla Raja, "Probiotic skincare and fermented skincare both use microorganisms to benefit the skin, but they work in slightly different ways. Probiotic skincare [adds] bacteria or metabolites to the skin to enhance the microbiome, whilst fermented skincare involves ingredients that have undergone fermentation to improve their effectiveness. Probiotics aim to support and balance the skin's microbiome, whilst fermented ingredients focus on improving the skin's ability to absorb and benefit from active compounds by increasing potency and efficacy. Some products may combine both elements to offer a broader range of benefits," she says.

What Are the Benefits of Using Probiotic Skincare?

Dr Drago has a very interesting way of looking at probiotic skincare: as a category of products that, unlike many others, "supports an existing ecosystem and balance within our skin instead of destroying [it] and starting from scratch. Because of the role of the microbiome in protection and inflammation, probiotic skincare is particularly suited to sensitive skin and skin prone to acne and eczema. This is where I see the most exciting advances—using bacteria to help with acne or eczema, instead of killing them all. The results are there and the products are much better tolerated," she explains.

In addition to helping with skin conditions and sensitivity, probiotic skincare also "helps with moisturisation by decreasing the skin's amount of water loss, and nourishing and protecting the skin's barrier from bad bacteria", according to Dr Raja.

In addition, as Alexiou explains, probiotic skincare also “enhances the skin’s ability to recover from environmental damage, contributing to a more radiant, even-toned appearance. What is groundbreaking about it is that instead of treating every symptom of stressed skin separately, you restore balance [to] your microbiome, your natural first-line barrier of the skin that was disrupted in the first place. This way, you can address all symptoms at once and protect your skin from future imbalance. The human body is a genius—you just need to support and optimise the way it naturally works," she says.

beautiful clear skin mirror selfie

(Image credit: @amaka_hamelijnck)

Who Is Probiotic Skincare Suitable for?

Dr Raja explains that "probiotic skincare can be suitable for a wide range of skin types and concerns. For sensitive skin, probiotics can help reduce irritation and support the skin's natural defences, helping to calm redness and inflammation and reduce reactions to environmental stressors. For acne-prone skin, probiotics promote healthy bacteria and reduce the growth of acne-causing bacteria, bringing balance to the skin and supporting skin healing.

"For rosacea and inflammatory skin conditions, probiotics help to soothe irritation and prevent flare-ups. For dull and dehydrated skin, probiotics help maintain the skin's moisture level, leading to a more hydrated, glowing complexion. For ageing skin, probiotics support collagen production, promoting a smoother, more youthful appearance. For post-treatment skin such as [after] microneedling or peels, probiotics are used to restore the skin's natural flora and assist in speeding up skin healing, reducing inflammation and irritation."

She reminds us that "in short, probiotics are suitable for many skin types, however, if you have a specific skin condition or concern, it's always best to consult with a dermatologist to ensure your skincare is suitable and the right choice for you."

What’s the Difference Between Probiotic and Prebiotic?

"Probiotics are usually lysate-based beneficial bacteria used in skincare to support the microbiome," says Alexiou. "Prebiotics serve as the nourishment for these probiotics, fostering a healthy balance. In simple [terms], probiotics are the good bacteria and prebiotics are their food. Together, they create a dynamic approach to supporting skin health. When a product contains both prebiotics and probiotics, it essentially contains a live system that works together to build skin resilience."

Dr Raja agrees that "prebiotics and probiotics both work to support the skin's microbiome, however, they play different roles in the maintenance of your overall skin health. Probiotics introduce beneficial bacteria or their byproducts to the skin, influencing the microbiome, whereas prebiotics support the growth and activity of good bacteria already present. Prebiotics provide food to help the good bacteria thrive, essentially nourishing and strengthening the skin's natural ecosystem. Many skincare products combine both to work in synergy, as this creates a balanced, healthy environment, leading to longer-lasting results."

Are There Any Downsides to Using Probiotic Skincare?

"No, and that’s the great thing about using pre, pro or postbiotic ingredients—they are natural, they work and they are extremely safe and well-tolerated by the skin," says Dr Drago. "After all, we’ve been co-evolving with these good bacteria for two million years, so it’s really about rediscovering what they can do for us."

Alexiou agrees. "Probiotic skincare is generally safe and well-tolerated. Rarely, individuals may experience a mild adjustment phase as the microbiome recalibrates." She adds, "Most products utilise stabilised probiotic derivatives, minimising storage concerns."

Echoing this, Dr Raja also advises that potentially, highly sensitive skin could experience side effects or varied results. "It's worth noting that probiotic skincare is not universally effective. Some skin can benefit from dramatic improvements, whilst others may not respond well to probiotics and the results may not be as significant or as expected. Those with very sensitive or highly reactive skin may experience irritation or allergic reactions when using probiotic skincare, including redness, itching or a burning sensation. Live bacteria in probiotics could potentially cause an imbalance for individuals who already have disrupted skin or those who are allergic to a specific strain of microorganisms."

bathroom sink surrounded by skincare

(Image credit: @harrietwestmoreland)

Do Probiotic Skincare Products Expire Quickly?

As Alexiou explains above, "Most probiotic formulations use stabilised components like lysates or filtrates, ensuring longevity comparable to other skincare products. However, products featuring live bacteria may have stricter usage guidelines."

Gallinée is one of those brands. Dr Drago says the brand "tries to keep preservative levels to a minimum, as their role is to kill bacteria, so indeed, [this] means an expiry date. This [allows] us to design products for even the most sensitive skin. The few existing brands that keep live bacteria in their products usually have a short shelf-life and have to be kept in the fridge.”

How Should You Use Probiotic Products in Your Skincare Routine?

"Microbiome skincare is great at two things: respecting the existing microbiome and soothing [the skin]. I usually say that the best way to integrate [it into] a skincare routine is at the very start and the very end. At the very start, because the way you cleanse is going to affect your microbiome a lot, so it’s best to use a gentle, pH-appropriate cleanser. If your routine is a bit rough on your skin [thanks to] acids, retinol or antibacterials, a good microbiome skincare product will soothe, rebuild the barrier and make sure only the good bacteria come back," says Dr Drago.

Dr Raja advises using probiotic serums or treatments "after cleansing and using an optional toner or essence. It is then that probiotic serums or treatments should be applied—before your moisturiser." She also advises that with products containing live bacteria, you should "avoid acids and retinoids which can disrupt the balance." Consider taking a break from these more intense ingredients or use them on alternating days.

The 12 Best Probiotic Skincare Products, Tried and Tested:

1. Gallinée Probiotic Youthful Serum

2. Korres Greek Yoghurt Probiotic Skin-Supplement Serum

3. Allies of Skin Molecular Saviour Probiotics Treatment Mist

4. Garnier Skinactive Probiotic Repairing Sheet Mask

5. Vichy Minéral 89 Probiotic Fractions Recovery Serum for Stressed Skin With 4% Niacinamide

6. Aurelia London The Probiotic Concentrate

7. Cultured Biomecare Biome One Cleansing Balm

8. Balance Me Pre + Probiotic Radiance Cream

9. Liz Earle Pro-Biotic Balancing Milk Cleanser

10. The Nue Co Barrier Clear Treatment

11. Antipodes Cream Culture Probiotic Night Recovery Water Cream

12. Elemis Dynamic Resurfacing Pads

Laura Pearson is a freelance beauty editor and broadcaster that has been writing about beauty since her first published article in 2003. For over 20 years she has been putting beauty products and treatments to the test, to help readers understand what to spend their money on. In that time, she has had a column in The Scotsman, been a beauty journalist for Metro UK and Yahoo! Style, and even written the luxury beauty and style pages for the now-extinct Caledonian Sleeper train on-board magazine. With hundreds of beauty articles to her name across print and digital, she has amassed a huge bank of product and ingredient knowledge. She has appeared many times on television and radio sharing her beauty tips, such as for the BBC, and she has a strong Instagram following who love her makeup and skincare content there too.

She has a particular love for luxury beauty and can never say no to a new lip balm or lip oil. She lives in Glasgow. Scotland with her husband and tiny Chihuahua.