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Protecting Your Barrier Through the Seasonal Shift
By Precious Chida
As we move into May, the shift in weather across South Africa — particularly the cooler air and rising winds in regions like Cape Town — brings a noticeable change to the skin. Increased wind exposure and lower humidity contribute to increased transepidermal water loss (TEWL), leaving the skin barrier more vulnerable, reactive, and prone to dryness.
For those managing eczema, atopic dermatitis, or general sensitivity, this transition often triggers flares. Even resilient skin may begin to feel tight, irritated, or unexpectedly breakout. This is largely due to barrier dysfunction, where the lipid layer is compromised — allowing irritants to penetrate more easily while moisture escapes. Research continues to highlight how central this process is to inflammatory skin conditions, as outlined in literature available through PubMed. https://pubmed.ncbi.nlm.nih.gov/20690824/
During this time, the approach should be simple: simplify and fortify.
A gentle, effective routine should include:
- A mild cleanser (foaming is acceptable if non-stripping)
La Roche-Posay Toleriane Dermo-cleanser
MD Cosmeceuticals Creamy cleanser
- A barrier-repair moisturiser rich in ceramides and occlusives
La Roche-Posay Cicaplast Baume B5
- A hydrating sunscreen suitable for sensitive skin
La Roche-Posay Anthelios Hydrating Cream SPF50
Heliocare 360 AR Emulsion SPF50
Heliocare Mineral Tolerance SPF50
Many patients reach for strong or antibacterial soaps thinking they are more effective, but these often do more harm than good during seasonal shifts. The skin’s microbiome — a delicate balance of beneficial bacteria — plays an essential role in maintaining barrier integrity and immune defense. Antibacterial soaps tend to be alkaline and non-selective, stripping away protective lipids and disrupting this balance, which can worsen sensitivity, dryness, and even trigger rebound breakouts. https://pubmed.ncbi.nlm.nih.gov/25207686/
Daily sun protection remains important, even in cooler months. While UVB intensity may feel lower, UVA exposure remains constant throughout the year and continues to drive inflammation, pigmentation, and premature ageing. Consistent sunscreen use is strongly supported by dermatological guidelines, including those from the American Academy of Dermatology. https://www.aad.org/public/everyday-care/sun-protection
It is equally important to be mindful of what to avoid during this period:
- Strong soaps and antibacterial cleansers
- Overuse of exfoliating acids (AHAs/BHAs)
- Fragranced products
- Alcohol-heavy formulations
Simplifying your routine during this time is often the most effective way to stabilise the skin.
A well-supported barrier also improves how the skin tolerates active ingredients, reducing the risk of post-inflammatory hyperpigmentation and irritation over time.
Looking back at April, we saw a clear shift towards barrier repair and gentle brightening as key priorities for many of our patients and customers. Top-performing products included MD Cosmeceuticals Vitamin C & Glutathione Gel Serum for lightweight, non-irritating brightening, along with SBR Protect Tub Cream and SBR Repair Cream, both widely chosen for restoring and maintaining the skin barrier in dry, sensitive, and eczema-prone skin.
Clearance Sale — Limited Availability
Our clearance section remains available for a limited time. These are authentic, high-quality products offered at reduced prices due to shorter shelf lives, typically within three months of expiry. This is a great opportunity to access premium skincare at a more accessible price point, particularly for products you already use regularly.
https://www.mddermoutlet.co.za/on-sale/clearance-sale/
Taking a barrier-first approach this season will not only reduce flare-ups but also improve how your skin responds to active ingredients over time. Small, consistent changes often make the biggest difference.
— Dr Matete Mathobela, Dermatologist and Founder of MD Cosmeceuticals
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