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Retinol Serum TWO 30ml DELTA Optiphi

Product information "Retinol Serum TWO 30ml DELTA Optiphi"

More than just a vitamin A skincare product. The ideal addition to any day or night care routine.

Stage two of this highly advanced vitamin A-based anti-ageing serum promotes cell rejuvenation. Stimulates protein synthesis in skin cells and improves the skin’s barrier function. A powerful serum developed with the maximum permitted concentrations of 3 unique retinoids in an advanced delivery system for optimised skin penetration. The unique, proprietary delivery system ensures maximum activity with minimal irritation. This serum has been developed to enhance the activity of other DELTA products and reduce the signs of ageing, including wrinkles, fine lines, sagging and loss of volume, as well as pigmentation issues.

This product does not make the skin sensitive to light, nevertheless, we recommend applying it at night for maximum effect.

Key ingredients

Anti-ageing effect thanks to retinol, bakuchiol, vitamin C and vitamin E

Soothing & regenerating thanks to bisabolol, plant-based oils and squalane

Protection against oxidative stress thanks to several antioxidants

Suitable for more sensitive skin (through a combination with bakuchiol and soothing oils)



RetinolAnti-ageing, stimulates collagen production, smooths wrinkles
BakuchiolPlant-based retinol alternative, low-irritation, antioxidant
Ascorbic Acid (Vitamin C)Antioxidant, brightening, promotes collagen production
Tocopherol / Vitamin EAntioxidant, protects against free radicals
BisabololAnti-inflammatory, soothes the skin
SqualaneMoisturising, strengthens the skin barrier
Bidens pilosa extractPlant-based anti-ageing active ingredient, retinol-like
Plant oils (e.g. cotton seed, palm, sunflower, linseed)Nourishing, soothing, rich in fatty acids and antioxidants


Review Cosmeticanalysis.com GOOD


We are often asked about the concentration. Here is the answer from Prof.Dr. Markus Depfenhart, the developer of DELTA:

The concentration in DELTA Retinol TWO is 0.3%. According to EU standards, the maximum amount for a ‘non-peeling’ product.

However, the encapsulation technology used makes the product stronger and effective over several days. This makes the product maximally effective with daily use.

 DELTA Retinol ONE is slightly lower at 0.2%. However, it works like a 1% retinol product.


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After cleansing, wait a total of 20 minutes before applying the Intense Retinol Serum. Use only a pea-sized amount per application. For ageing, sun-damaged skin. NOT recommended for customers taking Roaccutane or cortisone, or who have a vitamin A allergy.
Aqua,Sodium Acrylates Copolymer,Hydrogenated Polydecene,Bakuchiol,Bisabolol,Isosorbide, Dicaprylate,Squalane,Phenoxyethanol,Polyacrylamide,Undecane,Bidens Pilosa Extract,Methyl Methacrylate/Glycol,Dimethacrylate Crosspolymer,Elaeis Guineensis (Palm) Oil,Gossypium Herbaceum (Cotton) Seed Oil,Tocopheryl Acetate,Cetearyl Alcohol,Ethoxydiglycol,Sorbitan Srearate,C13-14 Isoalkane, Phospholipids, Polyglyceryl-10, Stearate,Linum Usitatissimum (Linseed) Seed Oil, Helianthus Annuus (Sunflower) Seed Oil, Polysorbate 20, Retinol,Tridecane, Polysorbate 60, Laureth-7, Disodium EDTA, Ethylhexylglycerin, BHT,Pentaerythrityl Tetraditbutyl,Hydroxyhydrocinnamate,Sodium Hydroxide, Tocopherol, Ascorbic Acid, Propyl Gallate.
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