Our review
A light, fragrance-free (essential-oil scented) night cream for combination and blemish-prone skin, built on hemp, grape and black seed oils with sulphur and niacinamide. Many users say it calms blemishes and absorbs well, but the strong sulphur smell is the dominant complaint and some found it drying.

Packaging and what the product is
The sylveco.pl photo shows a 50 ml black jar printed with white leaf drawings, a black screw lid and a lime-yellow label reading “duetus KREM NA NOC – regeneruje + reguluje”, in front of a matching black-and-white carton. According to the shop, the jar is glass with a PP lid; reviewers mention a wooden spatula in the box. Duetus is a Sylveco line for combination, oily and blemish-prone skin, and this is its evening cream; the brand gives a 3-month period after opening.
Ingredient analysis
After water, the formula is dominated by oils: hemp seed, grape seed and black cumin (Nigella sativa) seed oil, emulsified with sorbitan stearate, sucrose cocoate, glyceryl stearate and cetearyl alcohol. Actives include calendula extract, sulphur (the brand calls it bio-sulphur) and niacinamide, plus vitamin E (tocopheryl acetate); agar, acacia gum and xanthan gum give body.
There is no parfum: the scent comes from grapefruit and thyme essential oils, which is why citral, limonene and linalool are listed. Preservation uses benzyl alcohol and dehydroacetic acid. The shop labels the cream vegan.
What to watch out for
Citral, limonene and linalool are fragrance allergens that must be declared in the EU; thyme oil can irritate sensitive skin. Sulphur gives the product its characteristic smell and can dry the skin with frequent use, which matches several reviews. The short 3-month PAO is worth keeping in mind.
What users say
On Wizaż the cream has 3.6/5 from 89 ratings; on sylveco.pl it shows 4.8/5 from 37 reviews (both checked 30 Oct 2026). Positive reviews describe a light texture that absorbs quickly without a greasy film, does not clog pores and helps calm inflamed spots; one Wizaż reviewer wrote that “krem działa i spełnia obietnice producenta” (“it works and keeps the maker’s promises”).
The smell is the most frequent problem: many reviewers describe a strong sulphur odour that lingers until morning, and some stopped using the cream because of it. Several people with sensitive or dry skin found it drying or tightening, others thought it too thin for a night cream, and one regular buyer felt the formula had become runnier after a packaging change.
Who it may suit
Adults with oily, combination or blemish-prone skin who want a light evening cream and do not mind a herbal-sulphur scent. People with dry or very sensitive skin, or who are put off by strong natural smells, may prefer something else or use it only some evenings.
Editorial review by INCIMondo based on the ingredient list and publicly available opinions. Not medical advice. · 2026-11-01
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The ingredient list comes from the manufacturer’s website (date below). Formulas change and can differ between markets – the label of the product you buy is decisive.
Ingredients
- AQUA · Solvent
- Cannabis Sativa (Hemp) Seed Oil · not recognised
- VITIS VINIFERA SEED OIL · Skin conditioning – emollient, Skin conditioning
- Nigella Sativa (Black Seed) Seed Oil · not recognised
- SORBITAN STEARATE · Surfactant – emulsifying
- SUCROSE COCOATE · Antistatic, Surfactant – emulsifying, Skin conditioning
- GLYCERYL STEARATE · Skin conditioning – emollient, Surfactant – emulsifying
- STEARIC ACID · Cleansing, Surfactant – emulsifying, Emulsion stabilising
- CALENDULA OFFICINALIS FLOWER EXTRACT · Fragrance, Skin conditioning, Perfuming
- CETEARYL ALCOHOL · Skin conditioning – emollient, Surfactant – emulsifying, Emulsion stabilising
- SULFUR · Anti-seborrheic, Anti-sebum, Antistatic
- NIACINAMIDE · Smoothing
- AGAR · Binding, Fragrance, Viscosity controlling
- ACACIA SENEGAL GUM · Film forming, Fragrance
- TOCOPHERYL ACETATE · Antioxidant, Skin conditioning
- XANTHAN GUM · Binding, Surfactant – emulsifying, Emulsion stabilising
- Citrus Grandis Oil · not recognised
- THYMUS VULGARIS OIL · Fragrance, Perfuming
- Benzyl Alcohol. Dehydroacetic Acid · not recognised
- CITRAL · Fragrance, Perfuming, FlavouringEU restrictions
- LIMONENE · Deodorant, Solvent, PerfumingEU restrictions
- LINALOOL · Deodorant, PerfumingEU restrictions
An INCI list does not reveal exact concentrations.
Ingredient list as published
Aqua , Cannabis Sativa (Hemp) Seed Oil , Vitis Vinifera Seed Oil , Nigella Sativa (Black Seed) Seed Oil , Sorbitan Stearate , Sucrose Cocoate , Glyceryl Stearate , Stearic Acid , Calendula Officinalis Flower Extract , Cetearyl Alcohol , Sulfur , Niacinamide , Agar , Acacia Senegal Gum , Tocopheryl Acetate , Xanthan Gum , Citrus Grandis Oil , Thymus Vulgaris (Thyme) Oil , Benzyl Alcohol. Dehydroacetic Acid, Citral , Limonene , Linalool
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Ranked by shared ingredients (rarer ingredients count more). A similar ingredient list does not mean the same concentrations or effect.
DUETUS Krem na noc · Vianek
same ingredient listCompare →- VIANEK Normalizujący krem do twarzy na noc · Vianek
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8 shared ingredientsCompare → - DUETUS Maseczka do twarzy tubka · Sylveco
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DUETUS Krem na dzień · Sylveco
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