For years, breakout-focused skincare has centred on stripping oil, exfoliating aggressively, and targeting bacteria at all costs. But research into the skin microbiome is shifting that conversation.
Healthy skin depends on balance, including the balance of microorganisms living on the skin's surface. When this microbiome becomes disrupted, inflammation can increase, barrier function weakens, and skin often becomes more reactive, congested, and breakout-prone.
This is where prebiotics play an important role.
What are prebiotics in sincare?
Prebiotics are ingredients that help to nourish and support the beneficial microorganisms naturally present on the skin.
Rather than aggressively removing bacteria, prebiotics help to encourage a healthier microbial environment, supporting skin resilience and reducing imbalance over time.
How prebiotics help acne-prone skin
Research has shown that prebiotics may help to:
- reduce visible inflammation
- support balanced oil production
- minimise bacterial imbalance associated with blemishes
- strengthen barrier integrity
- improve overall skin resilience
This is particularly important for skin that feels:
- reactive
- congested
- dehydrated yet oily
- sensitised from overuse of active ingredients
Often, breakout-prone skin isn't simply "oily skin", it's stressed and disrupted skin.
What the research shows
A 2026 study published in Clinical, Cosmetic and Investigational Dermatology compared skin microbiome samples from 144 people, some with acne, some without. The result was clear: participants with acne showed significantly lower microbial diversity than those with clear skin.
Interestingly, the usual suspect, C. acnes bacteria, wasn't found in higher amounts on acne-prone skin. What stood out instead was the loss of overall diversity itself, alongside a rise in a different bacterial species, S. epidermidis. In other words, breakout-prone skin isn't simply about one "bad" bacteria taking over, it's about the whole ecosystem losing its balance.
This supports exactly what we see in practice: skin that's stressed and disrupted, not just oily, is what drives breakouts.
The Darl' approach
At Darl', we formulate with a series of prebiotic ingredients, including Glucomannan, Beta Glucan and Inulin, that support how skin functions long term, not just how it looks temporarily.
If breakouts have you reaching for harsher products, it's worth trying the opposite approach. The Darl' Cleanser is built to clear congestion without stripping the barrier, and the Darl' Serum feeds the microbiome with a trio of prebiotics daily.
Love your microbiome, with Darl'.
Sitohang IBS, Legiawati L, Widaty S, et al. Comparative Profile of Microbiome in Normal Skin and Acne Vulgaris Skin Patients. Clinical, Cosmetic and Investigational Dermatology. 2026;19:549168. https://doi.org/10.2147/CCID.S549168