Most skincare products want to be used every day. Cos De BAHA's AZ20 cream asks for less: the brand recommends applying it in the evening two or three times a week. That instruction says a lot about the product. At twenty percent, the azelaic acid here is the highest concentration of the active you are likely to find without a prescription, matching the strength of the original prescription azelaic acid cream developed for acne decades ago. Twenty percent can be very effective, and it can also sting, itch and dry the skin, so the brand has chosen to pair a strong dose with a cautious schedule. For a certain kind of user that is a smart combination.
Azelaic acid comes second on the ingredient list, immediately after water, which is consistent with a genuine twenty percent. Propylene glycol and sodium hydroxide follow, helping to dissolve and partially neutralise the acid, just as in the brand's AZ15 serum. The difference is the base. AZ20 is a proper emulsion, with caprylic/capric triglyceride, cetearyl alcohol, glyceryl stearate, dimethicone and olive-derived emulsifiers creating a soft cream that melts into the skin. That richer vehicle helps in two ways: it cushions the irritation that often comes with high-strength azelaic acid, and it adds moisture that the acid tends to take away.
The soothing and barrier ingredients echo the serum but sit in a more protective setting. Betaine, MSM, panthenol, allantoin and dipotassium glycyrrhizate calm the skin. Centella and madecassoside support recovery. Two hyaluronic acids, tocopherol and ceramide NP round out the barrier support. The formula is fragrance-free, with no essential oils, and the botanicals at the end are minor. This is a sensibly designed cream around one strong active.
Why use a cream at twenty percent instead of a serum at fifteen? For some people, a higher dose used intermittently is easier to manage than a lower dose used daily, and the cream base makes each application gentler. For others, especially those with oily skin who prefer light layers or who want to use azelaic acid morning and night, the serum format may suit better. The two products are not interchangeable; they are different approaches to the same ingredient, and choosing between them is a matter of skin type, schedule and tolerance rather than one being simply stronger.
Azelaic acid is one of the most versatile and best-studied actives in dermatology. It reduces acne-causing bacteria, helps keep pores from clogging by normalising how skin cells shed, dampens inflammation and inhibits tyrosinase, the enzyme involved in pigment production. That makes it a good fit for acne, the inflamed bumps and redness of rosacea, and the dark marks that breakouts leave behind. It is also generally regarded as safe during pregnancy and breastfeeding, a distinction few acne actives share, and it does not make skin more sensitive to the sun in the way retinoids and exfoliating acids can, though sunscreen remains essential for pigmentation.
The main caveat is irritation. At twenty percent, tingling, itching and mild redness are common in the first weeks, and some people also notice dryness or flaking. The brand's twice- or thrice-weekly schedule helps here, as does applying the cream to completely dry skin and following with a plain moisturiser if needed. People with very reactive or rosacea-prone skin may prefer to start with a lower-strength product and work up. As with the serum, the pH is not published, so it is unclear how much of the acid remains in its free, most skin-penetrating form.
Oily and acne-prone users should note that the cream contains fatty esters and olive-derived emulsifiers, which some people with Malassezia folliculitis avoid, and the base is richer than a gel. For normal, combination and dry skin types, however, the texture is comfortable and non-greasy once absorbed.
A simple weekly plan makes the cream easy to use well. Pick two or three fixed evenings, for example Monday, Wednesday and Friday, and keep those nights free of retinoids, acids and scrubs. On the remaining evenings, a gentle cleanser and a bland moisturiser, or a retinoid if you already use one, let the skin recover. After four to six weeks without significant irritation, some people add a fourth evening, while others find three is the sweet spot. Applying the cream to skin that is still damp tends to increase stinging, so waiting a few minutes after cleansing helps. Areas prone to dryness, such as around the nose and mouth corners, can be protected with a thin layer of moisturiser before the cream goes on, a common trick with strong actives that reduces flaking without noticeably reducing the benefit elsewhere.
AZ20 launched in 2025 as part of a broader expansion of Cos De BAHA's azelaic range, and independent reviews are still scarce, so the real-world picture relies mainly on the brand's formula and the general azelaic acid evidence. At around nineteen dollars for 50 ml from US retailers, the price is remarkably low for such a high concentration, and applying it only a few nights a week makes the tube last months.
For people who have tolerated lower-strength azelaic acid and want to step up, or who prefer a cream they can use a few times a week, AZ20 is a thoughtful and inexpensive option. For moderate or severe acne and rosacea, a dermatologist can prescribe azelaic acid formulations with proven results, often alongside other treatments.
