¿Cómo reparar una barrera cutánea alterada? Niacinamida, pantenol y una rutina más simple

How can you repair a compromised skin barrier? Niacinamide, panthenol and a simpler routine

A compromised skin barrier recovers by temporarily reducing sources of irritation, cleansing gently, replenishing water and lipids, and protecting the skin from the sun. Ingredients such as niacinamide and panthenol may help, but they cannot compensate for an excessive routine and should not be treated as a universal solution: the complete formula, individual tolerance and the skin’s actual condition matter more than any single ingredient.

In August, it is common to see skin that does not merely feel dry. Heat, accumulated sun exposure, chlorine, salt, air conditioning and more frequent cleansing can disrupt its balance. Add exfoliants, retinoids or several active serums, and the skin may begin to react even to products it previously tolerated well.

A common mistake is to respond by adding more products. In our professional experience, when skin stings, feels tight or reacts, it often needs a better selected routine, not a longer one.

What exactly is the skin barrier?

The skin barrier is the protective structure found mainly in the stratum corneum, the outermost layer of the epidermis. It consists of cells called corneocytes and a lipid matrix — including ceramides, cholesterol and fatty acids — that helps limit water loss and makes it harder for external irritants to enter.

When this structure functions correctly, the skin retains hydration more effectively and tolerates appropriate cleansing, environmental changes and skincare products. When it becomes compromised, transepidermal water loss, known as TEWL, increases and the skin becomes more vulnerable.

A compromised barrier is not, in itself, a dermatological diagnosis. It is a functional state that may occur in dry, oily, sensitive or acne-prone skin.

How can you tell if your skin barrier is compromised?

The most common signs are tightness, fine flaking, rough texture, itching, redness or stinging when skincare is applied. A confusing combination may also occur: skin that appears oily but feels uncomfortable and dehydrated.

None of these symptoms alone confirms a barrier problem. Rosacea, dermatitis, an allergic reaction and certain skin conditions can produce similar signs and require medical assessment.

A particularly useful clue is a change in tolerance: products that previously caused no discomfort begin to sting, or the skin worsens after several actives are introduced, exfoliation is increased or cleansing becomes too aggressive.

Our collection for redness and sensitive skin includes formulas that should be chosen according to the cause of the reaction, not simply because they use the word “soothing”.

What does the new niacinamide and panthenol study tell us?

A clinical trial published in May 2026 assessed a topical formula containing panthenol, niacinamide and dipotassium glycyrrhizate in 35 adults with xerosis, meaning clinically dry body skin. Each participant applied the product twice a day for 28 days to one leg, while the other leg was left untreated as a control.

As an indication, the treated area showed an instrument-measured increase in hydration of approximately 66% to 74% between days 7 and 28. Transepidermal water loss fell by around 11% to 14%. Measures associated with flaking and surface regularity also improved.

These results support the idea that a well-formulated emollient can improve hydration and functionally stabilise the barrier. They do not, however, demonstrate that niacinamide or panthenol used separately would produce the same results.

The study has important limitations: it included a small number of people, was conducted on the legs rather than the face, did not compare the formula with an inactive vehicle, participants knew which area they were treating, and the research was funded by the manufacturer. It therefore provides an interesting clinical signal, but not definitive evidence that can be applied to every skincare product.

What do niacinamide and panthenol do for the skin?

Niacinamide is a form of vitamin B3 used in professional skincare because of its role in barrier function, the regulation of certain inflammatory processes and the synthesis of epidermal lipids. Its presence in a formula does not automatically make that product suitable: concentration, the remaining ingredients and individual tolerance all influence the outcome.

Panthenol, also known as provitamin B5, acts mainly as a humectant and skin-conditioning ingredient. It helps retain water and is commonly included in formulas designed to soothe and support superficial recovery.

The product studied also contained dipotassium glycyrrhizate, a liquorice derivative used for its soothing action. This means the observed effect cannot be attributed to one active alone. In professional skincare, we assess the complete formula because a promising ingredient list can be undermined by its vehicle, fragrance, texture or its combination with the rest of the routine.

Are dry, dehydrated and sensitised skin the same thing?

No. Dry skin produces fewer lipids than it needs and tends to show tightness, roughness or flaking relatively consistently. Dehydration refers to a lack of water and can temporarily affect any skin type, including oily skin.

Sensitised skin reacts temporarily because of external factors or an unsuitable routine. Sensitive skin, by contrast, generally has a more persistent tendency to respond with discomfort or redness.

These conditions can coexist, but they are not corrected in exactly the same way. Applying a hydrating serum may be insufficient if it is not followed by lipids or a moisturiser capable of reducing evaporation. Equally, adding a highly occlusive cream will not solve a reaction caused by using several exfoliants at the same time.

For tightness and loss of comfort, explore our selection of skincare for facial and body dehydration, always adapting textures and active ingredients to the skin type.

What should a routine for skin-barrier recovery look like?

A temporary recovery routine can be reduced to three steps in the morning and two in the evening.

In the morning:

  1. Very gentle cleansing, or simply rinsing, depending on the skin.
  2. A moisturiser with a simple, well-tolerated formula.
  3. Broad-spectrum sunscreen suited to the level of sensitivity.

In the evening:

  1. Gentle cleansing that properly removes sunscreen and make-up.
  2. A moisturising or barrier-supporting cream adapted to the skin’s actual lipid needs.

During this phase, retinoids, exfoliating acids, physical exfoliation and intensive combinations of active ingredients should be paused or reduced. There is no universal rule for how many days they should be stopped: this depends on the severity and cause of the symptoms.

Day and night moisturisers should be selected according to their formulation, texture and tolerability, not only by age or the strength of their marketing claims.

Which mistakes delay skin recovery?

The first is continuing to use an active because “the skin has to get used to it”. Mild initial adjustment may occur with certain ingredients, but persistent burning, inflammation or marked flaking should not be normalised.

The second is introducing several repair products at once. If the skin improves or worsens, it will be difficult to identify which product was responsible.

The third is confusing barrier repair with extreme occlusion. Some skins need more lipids; others can become congested or uncomfortable with textures that are too rich.

The fourth is reintroducing every active as soon as the stinging disappears. The absence of immediate discomfort does not necessarily mean the skin has fully regained its tolerance.

How long does the skin barrier take to recover?

There is no exact timeframe that applies to everyone. A mild disruption caused by over-cleansing or exfoliation may improve within several days. Skin with ongoing inflammation, dermatitis or continued exposure to the trigger may require weeks and specific treatment.

If redness is severe, swelling is present, cracks or weeping develop, itching persists or the condition worsens, it should not be treated solely as a cosmetic concern.

Frequently asked questions about the skin barrier

Can I use niacinamide if I have sensitive skin?

Yes, some sensitive skins tolerate it well, but this depends on the concentration and complete formula. If it causes persistent stinging, stop using it and review the routine.

Should I stop using retinol if my skin feels compromised?

It is advisable to pause it or reduce the frequency until tolerance returns. Reintroduce it gradually and avoid combining it immediately with other exfoliants.

Does oily skin need a barrier-repair cream?

It may do, but the texture must be appropriate. Sebum production does not prevent dehydration or barrier disruption.

When should I consult a professional?

When symptoms are severe or persistent, appear without a clear cause, or could be linked to rosacea, dermatitis, an allergy or another dermatological condition.

If your skin is reacting, flaking or no longer tolerates its usual routine, a professional assessment can identify what it genuinely needs and prevent trial-and-error purchases.

This content is for information purposes and does not replace an assessment by a healthcare professional.