Aestura A-Cica 365 Blemish Soothing Serum 40ml

A pH 4.5 soothing serum for sensitive skin

Sensitive skin tends to have a higher pH than normal skin, making it more prone to redness from external triggers and slower to recover. Aestura A-Cica 365 Blemish Soothing Serum is formulated at a mildly acidic pH of 4.5 to help restore a healthier pH environment on the skin's surface. Its cooling, lightweight texture absorbs effortlessly even on irritated, heated skin and finishes without any sticky residue.

Clinically proven soothing results

• 121% improvement in temporary redness after a single use
• 95% soothing effect after professional skin treatments within 3 days
• 77% improvement in compromised skin barrier after 7 days
• Maintains a mildly acidic pH environment for up to 12 hours

Dermatologist-tested, allergy-tested, and suitable for acne-prone skin, so even the most sensitive complexions can use it with confidence.

Four cica actives paired with niacinamide

Madecassoside, asiatic acid, madecassic acid, and asiaticoside work together to support a compromised skin barrier, while niacinamide helps even out skin tone. PHA, a gentle exfoliating ingredient, contributes to restoring a mildly acidic environment, and zinc helps calm sensitized skin. Especially recommended for skin that flushes temporarily after laser treatments or peels, reacts sensitively to seasonal changes, or becomes easily irritated when switching skincare products.

During the essence/serum step in your skincare routine

Use after toner to prep the skin, and before your moisturizer. The mildly acidic pH 4.5 formula helps restore a healthy pH environment for sensitized skin. It's designed to be gentle enough to use right after professional treatments like laser procedures or chemical peels, making it an ideal first serum for irritated skin.

Suitable for morning and evening use

You can use it daily, any time of day. It's especially helpful when your skin is temporarily flushed after exercise, reacting to seasonal changes, or feeling sensitive from trying a new product. Because it maintains a mildly acidic pH for 12 hours, applying it in the morning protects your skin throughout the day, while evening application supports your skin barrier overnight.

Dispense with the dropper and apply gently

Use the dropper to dispense 2–3 drops into your palm. Apply first to areas prone to redness — cheeks, forehead, chin — then gently spread across the entire face. The lightweight, hydrating texture absorbs without stickiness and delivers a cooling, soothing sensation to skin that feels warm or irritated.

Recommended routine for sensitive skin

For enhanced soothing benefits, start with Aestura A-Cica 365 Hydration Toner pH4.5 to prep the skin, follow with this serum, then seal it in with Aestura A-Cica 365 Repair Cream pH4.5. On days when your skin needs extra calming, you can also use a cooling soothing pad before applying the serum.

Usage notes

• Avoid direct contact between the dropper and your skin. Wipe the dropper clean after each use before placing it back in the bottle
• Free from artificial fragrance and synthetic colorants. Tested as suitable for acne-prone skin
• If redness or irritation persists during use, discontinue and consult a dermatologist

Product ingredients list.

The list of ingredients is subject to change. Please consult the packaging of the product purchased.