Why are we talking about sensitive skin and CBD?
Anyone living with eczema, psoriasis or rosacea knows the routine of itching, redness, burning sensations and, not infrequently, a severe impact on self-esteem. While corticosteroids, immunomodulators or antibiotics remain mainstays of medical treatment, interest is growing in complementary solutions with fewer side effects. CBD – either on its own or in formulas with terpenes and antioxidants – has emerged as a candidate thanks to its anti-inflammatory and calming action, which has been proven in the laboratory. What do we already know and how can we apply it safely?
Three diseases, a common inflammatory basis
- Atopic dermatitis (Eczema) affects around 10% of children in Portugal, a common disease that occurs more often in urban areas; the skin barrier is fragile, losing water and allowing allergens to enter.
- Psoriasis affects 2-3% of the world’s adult population; it is an autoimmune response that accelerates cell renewal, forming scaly plaques and, in some cases, arthritis.
- Rosacea involves facial flushing and papules in around 5% of the population; small facial arteries become hyper-reactive, and there is also inflammation and proliferation of skin microbes.
Despite different causes, they all share two targets where CBD can act: excessive inflammation and skin barrier dysfunction.
How CBD benefits the skin
Cannabidiol interacts with CB1, CB2 and TRPV1 receptors present in keratinocytes and fibroblasts, triggering effects that are of interest to those with sensitive skin:
- Decreases pro-inflammatory cytokines such as IL-17A, IL-23 and TNF-α, reducing the redness and thickness of plaques.
- It balances the keratinocyte cycle, stopping the accelerated desquamation typical of psoriasis.
- It strengthens the barrier by stimulating the production of filaggrin and ceramides – crucial proteins for maintaining hydration.
- It relieves it ching by desensitizing TRPV1 channels, the “sensor” of itching and burning.
Forms of application and suggested routine
Topicals (cream, balm or 1-3% CBD oil)
- Apply twice a day, just after showering, when the pores are open and damp skin retains the active ingredients better.
- Choose fragrance-free formulas with soothing ingredients such as colloidal oatmeal, niacinamide or ceramides.
Oral oil
- Useful in cases of systemic inflammation – for example, arthritic psoriasis.
- Start with 10 mg/day and increase gradually, monitoring response and possible medical interactions.
Layer order
- Gentle cleansing (pH ≈ 5.5).
- Antioxidant serum or moisturizing toner.
- CBD cream.
- Occlusive moisturizer (if necessary).
- Mineral sunscreen (rosacea requires daily SPF).
Always do a 24-hour test on the inside of the arm before using on the face or large areas to make sure there are no allergic reactions.
Precautions and interactions
- Hemp seed oil is not synonymous with isolated CBD; those with nut allergies may react to vegetable oil, even if it contains little cannabidiol.
- If you are using topical corticosteroids, apply them at alternate times (morning corticosteroid, evening CBD) to distinguish effects.
- In active rosacea, avoid overly occlusive ointments or products with menthol or other ingredients that can aggravate redness on the face.
Look for a COA (Certificate of Analysis) that guarantees the absence of pesticides, heavy metals and a THC content of < 0.2 %.
Frequently asked questions
How long do I need before I notice improvements?
Between two and four weeks to reduce itching; psoriasis plaques may need 6-8 weeks.
Is full-spectrum with traces of THC safe?
In topicals, yes – THC doesn’t enter the circulation in any significant quantity. For oral ingestion, prefer broad-spectrum if you’re taking anti-doping tests.
Can I apply make-up after the CBD cream?
You can, as long as you wait 5 minutes for it to absorb and wear non-comedogenic make-up (that doesn’t clog your pores).
Can children with eczema use it?
Studies in pediatrics are still scarce; only with a doctor’s recommendation and a specifically tested formula.
Does CBD stain clothes or sheets?
Oil-rich balms can leave stains; wait for complete absorption before dressing or lying down.
Conclusion
CBD presents itself as a promising ally for sensitive skin: it controls inflammation, strengthens the skin barrier and soothes itching – all with a favorable safety profile when used in a low-concentration topical form. The initial results are encouraging, but they are not yet a substitute for conventional medical therapy. The best strategy is to integrate CBD gradually, document the evolution with photos and “before/after” records and maintain an open dialog with your dermatologist.