Corneotherapy has become one of the most respected philosophies in professional skin treatment. Developed from the pioneering work of the late Dr Albert Kligman and further advanced by Dr Hans Lautenschläger, dermaviduals creator and co-founder of the International Association of Applied Corneotherapy (I.A,C.), it is not simply a style of skincare, but a defined dermatological methodology.
Its purpose is simple: to support healthy skin by working with the skin, not against it.
When Marketing Replaces the Philosophy
As corneotherapy has grown in popularity, so too has the number of products and brands adopting the term. Yet, according to Dr Lautenschläger, this was entirely predictable. In 2014, he warned that the reputation of corneotherapy would increasingly be used for sales promotion, with conventional cosmetic products being presented under more progressive labels despite not adhering to the philosophy’s defining principles.
More than a decade later, we’re seeing exactly that.
Today, consumers and skin therapists are faced with claims such as ”Corneotherapy Inspired” and ”Hybrid Corneotherapy.” While these phrases may sound innovative, it is important to understand that corneotherapy has clearly defined principles.
Simply borrowing aspects of the philosophy does not make a formulation corneotherapeutic.
Ingredient Selection in Corneotherapy
Corneotherapy is highly selective about what enters a formulation. Rather than adding more, Corneotherapy focuses on giving the skin exactly what it needs, and leaving out what it doesn’t.
Within the corneotherapeutic philosophy, formulations aim to avoid:
- Fragrances and perfumes.
- Conventional preservatives, emulsifiers and surfactants.
- Mineral oils and silicones.
- Polyethylene glycols (PEGs) and PEG derivatives.
- Complex active agent cocktails containing multiple formulation aids.
Many of these ingredients perform their intended cosmetic function exceptionally well. They may improve spreadability, texture, stability, sensory feel, shelf life or manufacturing efficiency, which is why they are widely used throughout the cosmetic industry.
However, cosmetic performance should not be confused with skin compatibility.
Corneotherapy evaluates formulations through a different lens. Rather than asking whether an ingredient improves the cosmetic elegance of a product, it asks whether every ingredient has a meaningful physiological role within the skin.
Questions a corneotherapist might ask include:
- Does this ingredient contribute meaningfully to normal skin physiology and barrier recovery?
- Does it support the biology of the stratum corneum?
- Does it assist the skin’s own regenerative processes?
- Could it contribute to barrier disruption, irritation, sensitisation or the exacerbation of an already compromised skin condition?
- Or is it included primarily to improve the cosmetic characteristics of the formulation?
This distinction lies at the heart of corneotherapy. The philosophy is not simply concerned with whether an ingredient works in a cosmetic formulation, but whether it works in harmony with the biology of the skin.
Peptides: A Practical Example
Peptides provide an excellent example. Rather than asking, “Does this product contain a peptide?”, corneotherapy asks: “What is the peptide delivered in?”
Many commercially available peptide systems are supplied as active agent cocktails, where the peptide is accompanied by preservatives, chelating agents, pH adjusters, PEG-based emulsifiers, solubilisers and other formulation aids required for stability and delivery.
While each ingredient serves a legitimate technical purpose, corneotherapy considers whether the complete formulation remains physiologically compatible with the skin.
Did you know Peptides complexes are cited by the I.A.C. as the “worst offenders” in the arena of faux Corneotherapy.
Looking Beyond the Marketing
Not everything labelled “barrier care” supports the barrier.
Whether you’re a skin therapist recommending products or a consumer investing in your skin, look beyond the marketing.
Instead, ask whether the formulation has been developed from the ground up to support the biology of the skin through thoughtful ingredient selection, formulation simplicity, physiological compatibility and barrier-supportive chemistry.
Because true corneotherapy isn’t defined by a marketing claim.
It is defined by a formulation philosophy where every ingredient, every formulation decision and every manufacturing choice is made with one objective: to work with the skin, not against it.
Written by Kai Atkinson