On balance, microbiome, and the ancient wisdom of letting your skin breathe.
In the bathhouses of ancient Greece, known as the balaneion (βαλανεῖον), cleansing was a ritual of restoration. Mineral water, herbed oils, and unhurried care brought the body back into balance.
Dating back to 2,400 B.C., long before science gave language to the microbiome, the Ancient Greeks understood that the body thrives through harmony. Today, modern research is beginning to affirm that wisdom, one microorganism at a time.
Women taking showers in Public Bathhouse depicted on a Greek Vase
Your skin is a living community
Your skin hosts trillions of bacteria, fungi, and other microorganisms. Together, they form what scientists call the skin microbiome: a dynamic, invisible ecosystem that covers every centimeter of your body. This living community is one of your skin’s most powerful allies.
A healthy skin microbiome helps regulate immune responses, protect against harmful bacteria, and maintain what researchers call barrier integrity: the skin’s ability to hold moisture in and keep irritants out. When this community is diverse and balanced, your skin reflects it. When it is disrupted, the consequences can appear as sensitivity, dryness, acne, or inflammation.
The ancient Greeks approached the body with a similar respect for balance. In the absence of soap, they cleansed with olive oil, coating the skin after bathing or exercise so it could bind with sweat, dust, and impurities. A curved metal tool called a strigil was then drawn across the skin, removing the oil along with what the body no longer needed. A final rinse, often with cool water, completed the ritual.
It was cleansing through care rather than force: oil, movement, water, and touch working with the body’s natural rhythms.
"The part can never be well unless the whole is well."
- Plato
Ancient Olive Tree on the island of Crete
The problem with sterilization
For decades, the beauty industry operated on a simple assumption: cleaner and stronger is better. Deep clean everything with soap, then apply products.
Peer-reviewed research published in 2025 tells a more nuanced story. Anti-microbial approaches, those that attempt to eliminate bacteria indiscriminately, can reduce the very microbial diversity that keeps skin resilient. Less diversity may mean a less stable barrier, greater inflammation, and skin that becomes dependent on products to compensate for what has been depleted.
The same research shows that bacteria once labeled purely harmful, such as Cutibacterium acnes, historically associated with breakouts, can also play a role in immune regulation and skin homeostasis when kept in balance. The emerging lesson is one of discernment: support the skin’s ecosystem, protect its diversity, and help it return to equilibrium.
The gut-skin axis: beauty begins within
Your skin does not exist in isolation. It is in constant conversation with your gut. Dysbiosis, an imbalance in gut bacteria, can send inflammatory signals that surface, literally, on your skin. Research shows this gut-skin connection influences acne, atopic dermatitis, psoriasis, and even the pace at which skin ages. Conversely, a nourished gut microbiome supports calmer, clearer, more resilient skin.
Hippocrates wrote that all disease begins in the gut, nearly 2,500 years before the microbiome became a field of scientific study. The Ancient Greeks cleansed with olive oil, ate fermented foods, drank herb-infused waters and natural wines, and nourished the body as a whole. They were, in their way, already practicing what we now call the skin-gut axis approach.
Pre, pro, and postbiotics: simplified
Probiotics are live beneficial bacteria: the ones that, applied topically or taken orally, help crowd out harmful microorganisms and restore microbial diversity. Prebiotics are the food that beneficial bacteria need to thrive. Prebiotics are a type of fiber or fiber-like compound that selectively nourish the good, allowing balance to emerge naturally. Postbiotics are the active byproducts that probiotics produce: compounds like short-chain fatty acids that reduce inflammation, support barrier function, and help skin cells renew themselves.
Together, they do not fight your skin. They work with it.
What this means for your ritual
Instead of asking what can be removed from the skin, we ask: what does the skin need to maintain its own intelligence?
Gentle, non-comedogenic formulations. Ingredients that balance the barrier rather than deplete it. Pre and post-biotic actives sourced with integrity. Ingredients that allow the skin to do what it has always known how to do.
The ancient Greek ritual of olive oil and the strigil reminds us that cleansing was once tactile, intentional, and respectful of the body. It did not begin with the pursuit of sterility. It began with restoration.
In Ancient Greece, beauty was a remembrance: a return to the body’s own wisdom. Your skincare ritual can be the same. Hippocrates himself prescribed therapeutic baths as part of healing, treating water, warmth, and ritual cleansing as essential to restoring the body’s balance.
"Well-being is realized by small steps, but is truly no small thing."
- attributed to Zeno of Citium
At Eleusia, every formulation begins with this question: does this support the skin's own ecosystem? Explore our ingredient philosophy, rooted in Greek botanicals and backed by microbiome research.
The Asklepieion of Kos: an ancient healing sanctuary associated with Hippocrates
“Asclepieion.” Kos Island Greece, Municipality of Kos, https://kos.gr/historical-monuments-and-museums/asclepieion.
Boardman, John. “The Olive in the Mediterranean: Its Culture and Use.” Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences, vol. 275, no. 936, 1976, pp. 187–196. The Royal Society Publishing, https://doi.org/10.1098/rstb.1976.0080. (Royal Society Publishing)
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“Strigil.” The J. Paul Getty Museum Collection, J. Paul Getty Museum, https://www.getty.edu/art/collection/object/103SNR.
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Classical quotations:
Plato. Charmides. Translated by Benjamin Jowett, The Dialogues of Plato, Oxford University Press, 1892.
Diogenes Laertius. Lives of Eminent Philosophers. Translated by R. D. Hicks, vol. 2, Harvard University Press, 1925.