FOUR STARLINGS SOAPMAKERS Acid serum – edelweiss 100ml


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This product is filled to the brim with beneficial ingredients. It’s a potion. And it’s immediately available in the Muggle world. Let us introduce you to the first acid serum in our career. A splen-did one. It’s based on rose flower water (known for its moisturising and soothing effect) combined with iconic skincare ingredients such as mandelic, lactobionic and hyaluronic acids. Altogether, they create a unique, light, quickly absorbing and, above all, highly effective mixture. Although edelweiss’ name sounds delicious and entirely innocent, it hides its truly potent properties.

We know that the word “acids” sounds frightening for some people and makes them think of laboratory test tubes filled with fuming and corrosive substances. However, the truth is that acids (used in the proper concentrations, of course) are one of the most beneficial substances in skincare. We used them as ingredients in our face serum, specifically mandelic and lactobionic acids. Now, let’s proceed to a bit of chemical theory.

Mandelic acid  is classified as alpha-hydro acids (fruit acids) which provide lots of skincare benefits. Compared to other AHA acids, it is relatively gentle and can be used by people with sensitive skin. It has not only exfoliating but also moisturising and sebum-regulating effects.

Whereas lactobionic acid is classified as PHA acids, i.e. intended for the care of sensitive skin. It is also for dry skin and dilated capillaries. When used in the appropriate concentration (no worries, we took care of it!), it provides deep nourishment and helps with epidermis keratosis issues.

The above-mentioned substances are responsible for the serum’s leading properties, i.e. intense moisturising and gentle exfoliation. And that’s not all! When used regularly, the product evens out the skin tone, helps to reduce discolouration and the appearance of small scars

The important thing is that both mandelic acid and lactobionic acid do not have a photosensitising effect. What’s more, their combination with soothing ingredients (such as allantoin, panthenol or aloe vera juice) lets you use the serum all year round, not only in the autumn and winter season, like with most exfoliating cosmetics of this type.

The serum smells. It has a delicate, subtle, but most of all natural scent. Our product owes this aroma to its base, the rose flower water, which makes its application extremely pleasant. Nearly sensual.

And here we go with another thing: its application. It’s lightning fast. The serum is im-me-di-ate-ly absorbed by the skin! As it has a light gel consistency, you won’t remember how a greasy film feels on your face. Instead, you’ll learn what an immediate feeling of freshness and tightness is.

And last but not least – our icing on the cake – the edelweiss. Edelweiss extract, hand in hand with a hyaluronic acid (a skincare genius), also gives the serum a regenerating, tightening and anti-ageing effect.

We told you it was a real potion didn’t we?

IMPORTANT: It should not be forgotten that despite the great delicacy that we put into this product, acids are exfoliating substances. Their effect on the skin varies depending on the skin type, as well as its reaction to exfoliating cosmetics. What does this mean in practice? The serum can work both very gently (sebum-regulating, micro-exfoliating and moisturizing with the desired glow effect), but it can also result in noticeable exfoliation.

This is why we recommend introducing the product gradually, up to 1-2 times a week, in the evening, preferably with moisturizing creams (applied about half an hour after using the serum). And during the day, we must remember to protect our face with SPF cream.

Rosa Damascena Flower Water – is the base of the product, which moisturizes, nourishes and refreshes the skin. The hydrosol also contributes to a pleasant, light scent.

Mandelic acid – has a softening, moisturizing and exfoliating effect. It regulates the secretion of sebum.

Propanediol – a natural substance that is an acid solvent.

Lactobionic acid – uwhen used in the right dosage, it moisturizes and also has a positive effect on the epidermis keratinization process. It is a mild acid and can be used by people with sensitive skin.

Panthenol – has a soothing, conditioning and smoothing effect on the skin, helps to maintain the optimal level of skin hydration.

Glycerin – is a natural humectant, so it moisturizes, nourishes, and protects.

Aloe juice – moisturizes the skin, protects it against harmful external factors, has a firming effect.

Hyaluronic acid – is responsible for the proper level of skin hydration, thanks to which it remains firm and soft.

Edelweiss extract – has a strong antioxidant effect, soothes the skin and helps protect it against adverse factors.

Allantoin – has soothing and regenerating properties. It has a moisturizing and softening effect, giving the skin a feeling of smoothness.

DHA BA – a natural preservative that protects the cosmetic.

Xanthan gum – a natural thickening agent.

Chelator – binding agent.

Ingredients / INCI: Rosa Centifolia Flower Water, Mandelic Acid, Propanediol, Lactobionic Acid, Panthenol, Glycerin, Aqua, Aloe Barbadensis Leaf Juice, Sodium Hyaluronate, Leontopodium Alpinum Flower / Leaf Extract, Allantoin, Dehydroacetic Acid, Benzyl Alcohol, Xantium Phytate, Alcohol, Sodium Benzoate, Potassium Sorbate.

Acid concentration:

Mandelic acid (AHA 15%)
Lactobionic acid (PHA 5%)
Glass bottle capacity: 30 ml

Store in a cool and dark place.

A cosmetic without preservatives.

The product has been dermatologically tested.

Each cosmetic produced by the Four Starlings is a craft product. Therefore, depending on the batch, individual items may slightly differ in color, consistency or smell. Don’t worry, it’s usually okay – this makes each of our products unique. However, if you know our products well and you know that something has gone wrong with yours, be sure to let us know by e-mail at We will check what happened and send you a new one.

Shake it well before use. Gently massage a few drops of the serum into cleansed facial skin. Use 1-2 times a week, depending on your needs. Use sunscreen during the day. In case of irritation, discontinue use. Avoid eye contact.

Additional information

Weight0.150 kg

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