authentic Serum low pH moist therapy 30ml

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Unit price £29.40 per  100 ml Each

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Gluconolactone Serum – Intensive Hydration and Microbiome Support!

5% Gluconolactone Serum is an intensive hydrating treatment designed for dry, dehydrated skin that requires support for the hydrolipid barrier. The formula with pure gluconolactone molecules activates the skin’s natural self-hydration mechanisms, reduces discomfort from water loss, and supports the microbiome, restoring daily balance and a fresh appearance.

When to use 5% Gluconolactone Serum?

  • for dry, dehydrated, or less elastic skin
  • after daily water loss from the epidermis
  • to support the skin microbiome and hydrolipid barrier
  • for skin needing intensive hydration and comfort
  • morning and evening application for a fresh, hydrated look

Active ingredients:

  • 5% Gluconolactone – a polyhydroxy acid (PHA) that deeply hydrates, accelerates skin renewal, and activates self-hydration
  • Tołpa® peat – regulates metabolic processes, supports epidermal regeneration, prevents moisture loss, neutralises free radicals; contains fulvic acids, bitumens, amino acids, macro- and microelements

Additional benefits: short formula with only 11 ingredients, 97% natural origin, 100% vegan, hypoallergenic, fragrance-free.

Clinically proven effects*:

  • +46% hydration within 1 hour
  • increases skin elasticity in 5 days
  • prevents water loss from the epidermis
  • supports and stabilises the skin microbiome
  • restores balance and skin comfort

*Instrumental, microbiological, dermatological, and application tests on a group of 65 volunteers. Dermatologically tested at the Clinic of Dermatology, Allergology and Venereology, Medical University.

How to use:

Apply the serum to cleansed and toned skin. Gently tap in with fingertips until fully absorbed. Use morning and evening. In the morning, the serum absorbs quickly, does not weigh down the skin, and provides daily hydration and a fresh appearance.



Expiry date: min. 3 months unless stated differently in the title or description

Only 11 essential ingredients:

1. Aqua - purified water, carrier and solvent for active substances

2. Gluconolactone - natural polyhydroxy acid (PHA) – moisturises and accelerates epidermal renewal

3. Squalane - plant-based emollient, prevents water evaporation from the skin surface

4. Hydroxypropyl Starch Phosphate - natural polymer obtained from corn starch – thickens the formula

5. Cetearyl Olivate - olive oil-based ingredient – moisturises and gives the emulsion its form

6. Sorbitan Olivate - olive oil-based ingredient – moisturises and gives the emulsion its form

7. Peat Extract - tołpa® peat – a multi-plant antioxidant, naturally protects and strengthens sensitive skin

8. Sodium Hydroxide - an ingredient that ensures the correct pH 

9. Methylpropanediol - ingredients that ensure durability and microbiological safety

10. Caprylyl Glycol - ingredients that ensure durability and microbiological safety

11. Benzoic Acid - ingredients that ensure durability and microbiological safety



The product label is the authoritative source of ingredient information. Our website descriptions are based on manufacturer data; despite our best efforts, minor formulation changes by the manufacturer may not be immediately reflected online.