Not all probiotics are equal. Here's what the research says — and why it matters for your skin.
Your gut and your skin are always in conversation. When one is balanced, the other tends to follow. It's not a trend — it's biology. And it's the foundation that every Monday Muse product is built on.
We call it the inside-out approach. Skincare that works on the outside. Supplements that support from within. One holistic routine for your best skin.
At the heart of that supplement routine? Probiotics. But not all probiotic strains are created equal — and when it comes to skin health, these four are the ones worth knowing about.
Lactobacillus Acidophilus
One of the most studied probiotic strains in skin health research, L. acidophilus works via the gut-skin axis — the well-established connection between your gut microbiome and how your skin looks and behaves.
When the gut microbiome is in balance, the skin tends to reflect that. L. acidophilus is one of the most researched strains for supporting that balance, making it a cornerstone of any inside-out skincare approach.
Lactobacillus Rhamnosus
The strain sensitive skin researchers keep coming back to.
Studies show that L. rhamnosus supports the gut's natural barrier function — and a strong gut barrier is one of the foundations of balanced, settled-looking skin. If your skin tends to be reactive, sensitive, or easily disrupted, this is the strain to know.
Bifidobacterium Lactis
Balance your gut microbiome, and your skin microbiome tends to follow.
Research shows that B. lactis actively supports a healthier gut environment — the kind your skin notices. It's one of the most well-researched strains for gut microbiome balance, and its connection to skin health is exactly why it's included in the Monday Muse supplement formula.
Saccharomyces Boulardii
Not a bacteria — a beneficial yeast. And one of the most underrated strains for skin health.
Research shows it supports gut barrier integrity and internal balance. Your gut notices. Your skin does too.
S. boulardii is particularly interesting because of the way it works — strengthening the gut lining and supporting the body's natural internal environment, which research consistently connects to how skin looks and behaves from the outside.
The Inside-Out Difference
Your skin doesn't exist in isolation. It's connected to everything — your gut, your diet, your stress levels, your sleep. At Monday Muse, we build every product around that understanding.
These four probiotic strains are inside our supplement for a reason. Because great skin isn't just about what you put on your face. It starts from within.
Inside out. Always.
Discover the Monday Muse supplement and skincare range at mondaymuseskin.com
