What new research on viral Korean skincare routines teaches us about professional guidance,
consistency, and listening to the skin
By Kathleen Peara
KATHLEEN PEARA SKINCARE FOR LIFE™
After 45 years as an esthetician, caring for thousands of people’s skin, I have learned that thoughtful skincare begins with observation. What does this skin need today? What has changed since our last visit? What will help it remain comfortable and well cared for over time?
A skincare ritual should offer a dependable foundation, with room to evolve. The products that suited us at twenty may need reconsideration at fifty. Even within a single year, changes in health, hormones, medications, environment, or skin condition may call for a different approach.
What the Korean “glass skin” research found
At the 2026 European Academy of Dermatology and Venereology Congress, researchers reported an analysis of 38 popular TikTok videos about Korean skincare and “glass skin.” Almost 95% contained at least one potentially misleading claim; 84% overlooked differences in skin type, and 45% encouraged excessive combinations of active ingredients without appropriate safety guidance. [1]
A separate observational study involved 94 patients who already had new or worsened skin problems after using social-media-promoted products. Among this selected group, 42% had irritant contact dermatitis, 28% developed acne or significant worsening, and 63% used more than three active ingredients simultaneously. These figures are not the risk for all skincare users. [1]
These conference findings have limits: they do not establish causation or prove that a four-step ritual is superior. Researchers emphasized the merits of gentle cleansing, hydration, and barrier care associated with Korean skincare. Their concern was generalized advice and unsuitable combinations. [1]
For my practice, the lesson is to translate interest in skincare into a plan that respects the individual.
The value of an esthetician-guided ritual
An experienced esthetician can help turn a crowded shelf of products into a purposeful home-care plan. That begins with reviewing your current routine, sensitivities, goals, and relevant health changes, then selecting cosmetic care within the esthetician’s professional scope.
The guidance should include how much to apply, when to use each product, which combinations to avoid, and what signs mean the plan needs reassessment. Follow-up matters: a routine should be evaluated by how your skin responds.
I use “prescribed ritual” to mean a professionally recommended cosmetic regimen. Medical diagnosis and prescription medication belong with an appropriately licensed medical clinician. Esthetic care can complement that care and help clients follow a coordinated plan.
Four steps, each with a purpose
Cleanser → Toner/Astringent → Serum → Creme
This is the daily framework at KATHLEEN PEARA SKINCARE FOR LIFE. Its value lies in clear purpose, suitable formulations, and consistent use. Dermatology guidance identifies cleansing, moisturizing, and sun protection as the essentials; toner and serum are additions chosen for individual needs. [2]
1. Cleanser: begin gently.
Cleansing removes makeup, excess oil, and daily debris. A cleanser should leave the skin comfortable. Harsh scrubbing and over-cleansing can irritate it. The right choice respects both the skin’s condition and the rest of the ritual. [2,3]
2. Toner or astringent: choose for the skin before you.
A hydrating toner may provide a useful layer of moisture; an astringent may suit selected oily skin when well tolerated. This step should earn its place. It is not essential for everyone, and a drying or irritating formula should be reconsidered.
3. Serum: the heart of the ritual.
In my philosophy, the serum is where the ritual becomes most personal: a selected formula directed toward a specific cosmetic goal, such as hydration or the appearance of uneven tone and texture.
My approach brings together the science of peptides and the wisdom of plants. Each formula must still be judged on its own evidence, formulation, and compatibility with the person using it. A serum is not automatically stronger or better absorbed than a creme, and a botanical ingredient must also be assessed for tolerance.
4. Creme: support moisture and comfort.
A suitable creme helps retain moisture and supports comfortable skin. Texture can be adjusted to the person’s needs; oily skin also benefits from appropriate moisturizing. [4]
Every morning, include sun protection.
Complete daytime care with a broad-spectrum, water-resistant sunscreen of SPF 30 or higher, along with shade and protective clothing. Reapply as directed, including every two hours outdoors and after swimming or sweating. The four-step ritual does not replace this essential protection. [2,5]
Daily care and professional treatments belong in one plan
Home care provides continuity between appointments. Professional visits provide an opportunity to reassess the skin, review progress, and decide whether a treatment still serves the intended goal.
Depending on the assessment, a session may emphasize hydration, gentle cleansing, or carefully selected exfoliation. Every procedure should match the provider’s training, professional scope, and the client’s current suitability.
A useful treatment protocol records the goal, products or procedure used, treatment intensity, aftercare, and response. At the next visit, that response helps determine whether to continue, modify, space out, or postpone treatment.
For chemical peels, assessment of medical history, medications, skin coloring, possible complications, and before-and-after care is especially important. [6] More intensive treatment is not automatically better care.
When the ritual needs to change
Menopause can bring dryness, thinning, and increased sensitivity. A previously comfortable routine may need gentler cleansing, more moisture support, or fewer irritating products. Age alone does not determine the plan; the skin’s present condition does. [7]
Changes in health or medication are reasons to update your esthetician and coordinate with your medical clinician before proceeding with treatments. Seasonal changes, new sensitivities, and recent procedures also deserve review.
Persistent redness, acne, dermatitis, or unexplained changes may require dermatologic assessment. In melanin-rich skin, treatment planning should consider the risk of discoloration following irritation; professional expertise is particularly important when considering peels, microdermabrasion, or lasers for acne. [8]
When cosmetic products cause burning, stinging, or worsening irritation, pause the offending products and seek guidance. For prescription products, contact the prescriber about reactions. [3] Reintroduce products cautiously, one at a time, when appropriate, so their effects can be observed.
Sometimes the best adjustment is a simpler ritual while the skin recovers. Consistency means continuing appropriate care, with permission to change the plan.
Prevention → Correction → Maintenance
At KATHLEEN PEARA SKINCARE FOR LIFE™, my philosophy is prevention, thoughtful correction, and ongoing maintenance—bringing together the science of peptides and the wisdom of plants in skin whispering rituals.
Daily home care and appropriately selected maintenance treatments form an integrative approach, attentive to the person as well as the skin.
There is wisdom in repetition, and wisdom in knowing when to change. Each gentle cleansing, each carefully chosen formula, each moment of attention becomes a way of honoring the skin through the seasons of life.
Listen. Care. Adjust. Let your ritual grow with you.
Kathleen Peara
KATHLEEN PEARA SKINCARE FOR LIFE™
www.kathleenpearaskincareforlife.com
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