CEL™ RETINAL SERUM
Encapsulated retinaldehyde, for visibly firmer, smoother skin.
30ml
A nightly retinal, formulated for high tolerability. For skin focused on firmness and a smoother surface.
Tested free of endocrine disruption
High tolerability
Made in France
For a complete night system, buy it with
Retinol vs retinal
texture
What it does
What you can expect to see
Skin appears visibly firmer.
The surface looks smoother and more refined.
Formulated for high tolerability.
Tested free of estrogenic and androgenic endocrine disruption.
TESTED FOR VISIBLE RESULTS
In a dermatologist-controlled study, the results built with time :
- 100% said skin felt smoother, firmer and more even
- 100% said skin quality improved day after day
- 100% said skin looked visibly younger
- 100% said their skin felt healthier after using the serum
Clinical study, 20 women aged 35 to 60, sensitive skin, every other night for three weeks then nightly. Measured at 56 days.
Retinaldehyde is a well understood ingredient in visible aging, with a long research record behind it. Ours is encapsulated, so it is released slowly and stays stable, which is part of why it is gentle enough for most skin.
Skin does not need stimulation alone. It needs the right conditions to maintain itself. Our patent-pending complex of botanical extracts, peptides and exosomes is built on that principle - and the results are visible. 2026 IMCAS Innovation finalist.
WE TEST WHAT ALMOST NO ONE TESTS.
Chemicals can behave differently together than alone. It is called the cocktail effect. So we test the finished formula, not single ingredients.
Tested free of estrogenic and androgenic endocrine disruption
01 - On damp skin
Just after cleansing, while skin is still slightly damp, apply three to five drops.
02 - Wait one minute
Give it a moment to settle before the next step.
03 - Then the night cream
Follow with the Exosome Advanced Night Cream to seal the routine.
Use in the evening only. Retinaldehyde is sensitive to light, and in the first months skin can be a little more reactive to the sun. Wear a broad-spectrum sunscreen each morning. Introduce it gradually, two or three nights a week to start, then build up as your skin settles.
Considered, and easy to begin
This is a retinal formulated for high tolerability, which makes it a considered choice for skin that is new to retinal, introduced gradually. If your skin is sensitive, begin slowly and patch test first.
If you are pregnant or breastfeeding, speak with your doctor before using a retinal.
Nothing hidden. We test the whole formula, so we show you the whole formula.
Water (Aqua), Propanediol, Dimethyl isosorbide, Glycerin, C9-12 alkane (vegetal origin), Sorbitol, Decyl glucoside, Protium heptaphyllum resin, Caesalpinia sappan extract, Coco glucoside, Hydrolyzed vegetable protein, Hydrolyzed moringa oleifera seed extract, Baobab Pulp Extract (Adansonia digitata pulp extract), Guar Gum (Cyamopsis tetragonoloba gum), Acacia senegal gum, Lecithin, Vitamin E (Tocopherol), Sunflower Seed Oil (Helianthus annuus seed oil), Sodium citrate, Retinal, Xanthan gum, Ascorbyl palmitate, Sodium benzoate.
Tule Explains
Introducing
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Faq - Questions, answered
At night, this serum hydrates and the Exosome Advanced Night Cream goes over it to keep that moisture in. Together they are your routine, so no separate moisturizer is needed.
Night only. Retinaldehyde is sensitive to light, so daylight is not its friend. Keep it to the evening, and wear sunscreen in the morning.
Appearance changes build over weeks, not days. Consistency is what makes them last. The study results above show how they built with time.
Every finished formula is tested free of estrogenic and androgenic endocrine disruption. Not single ingredients. The whole formula.
Speak with your doctor before using a retinal during pregnancy or breastfeeding.
It is formulated for high tolerability. Begin slowly, two or three nights a week, and patch test first. Build up as your skin settles.