CEL™ RETINAL SERUM
High-performance night serum designed for a global action on the signs of aging. It smooths wrinkles, refines skin texture, revives radiance, and supports firmness, while offering high tolerance, even for sensitive skin.
- A triple action on collagen.
- 90% of testers noticed younger-looking skin*
30ml
dès 59 €
4 à 5 jours
INGREDIENTS
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, Adansonia digitata pulp extract, Cyamopsis tetragonoloba gum, Acacia senegal gum, Lecithin, Tocopherol, Helianthus annuus seed oil, Sodium citrate, Retinal, Xanthan gum, Ascorbyl palmitate, Sodium benzoate.
Fragrance-free
No preservatives
EMBALLAGE
Glass bottle and pipette for recycling
Nitrile tip
Outer case made of cardboard, recyclable FSC paper
DIRECTIONS FOR USE
Shake well before use. Apply 3 to 4 drops of the serum to clean, cleansed, and slightly damp skin.
- For sensitive and reactive skin or those who have never used retinoids: Every other evening for 2 weeks, then every evening, depending on tolerance.
- For skin that has already used retinoids: Apply the serum every evening.
Use in conjunction with a daytime skincare product with SPF protection.
How to use it in the Skin Diligent Night Protocol:
1. Cleanse the face with the Triple Action Cleanser. If you are wearing eye makeup, remove it first with a gentle oil such as jojoba oil.
2. On slightly damp skin, apply 3 to 5 drops of the CEL™ Retinal Serum. Wait 1 minute.
3. Apply the Exosome Advanced Night Cream, massaging gently.
WHAT MAKES THE DIFFERENCE.
FOR SKIN THAT HAS NEVER TOLERATED RETINOL.
Its encapsulated retinal is released gradually to smooth fine lines and wrinkles while improving skin tolerance, even on sensitive skin.
PROVEN TO HELP SKIN LOOK YOUNGER FOR LONGER.
The CEL™ complex acts at the cellular level on mechanisms related to aging for firmer, smoother, and more resilient skin over time.
Tested for the absence of estrogenic and androgenic endocrine disruption.
VISIBLY SMOOTHER AND FIRMER SKIN.
find their skin smoother, firmer, more even *
find that their skin quality improves day by day
find their skin is visibly younger*
find their skin in better health*
*Results obtained after 1 application every other night for 3 weeks, then every night for 1 week (28 days) - 20 women - 35 to 60 years old - sensitive skin.
RETINOL, AS SEEN BY OUR EXPERTS
OPTIMIZE YOUR SKIN AGING
CEL™ COMPLEX - PATENT PENDING
Helps reduce cellular stress to recreate optimal conditions for proper skin function. It combines botanical extracts, peptides, and exosomes. Finalist for the 2026 IMCAS Innovation Award.
ENCAPSULATED RETINAL
Retinal is 11× more effective than retinol. Ours is encapsulated for gradual release and stability, which contributes to its high tolerance, even for sensitive skin.
ELIMINATES ONE OF THE MAIN REASONS FOR DISCONTINUING RETINOL
Independently tested on 20 women with sensitive skin. Excellent tolerance.
TESTED FOR THE ABSENCE OF ESTROGENIC AND ANDROGENIC ENDOCRINE DISRUPTION.
Some substances can disrupt the natural functioning of our hormones: these are called endocrine disruptors. Looking at each ingredient separately is not enough. Once combined in the same formula, they can interact and produce a different effect. This is known as the cocktail effect.
This is why we test every product in its final formula, exactly as it will be applied to the skin.
FAQ - FREQUENTLY ASKED QUESTIONS
Retinal or retinol: what is the difference?
Retinal, or retinaldehyde, is one step closer to the active form of vitamin A than retinol: it requires only a single conversion step in the skin, compared to two for retinol. This conversion has been measured to be up to eleven times faster in the laboratory. The CEL™ Retinal Serum contains 0.15% of it, encapsulated for gradual release.
Does retinal cause the skin to peel or turn red?
This is what makes people give up on retinol most often: flaking, tightness, and redness during the first few weeks. The retinal in the CEL™ Retinal Serum is encapsulated in a Protium heptaphyllum resin, which releases it gradually instead of all at once. The serum was tested on 20 women with sensitive skin, aged 35 to 60. A reaction is still possible: start by using it every other evening for three weeks.
Does retinal cause purging, with breakouts at the beginning?
Purging is a breakout of imperfections that sometimes occurs when starting a retinoid: by accelerating cell turnover, it causes blemishes that were already forming to surface more quickly. It is more common with potent, immediate-release retinoids. If breakouts occur, space out the applications instead of stopping.
Is it suitable for all skin types?
Yes. Thanks to its encapsulation technology and its combination with the CEL™ Complex, the serum is designed to offer optimal tolerance, even for sensitive and acne-prone skin.
Sensitive, reactive, or redness-prone skin: can it be used?
Yes, that is the profile on which the serum was tested: 20 women with sensitive skin, aged 35 to 60, over 28 days. The encapsulation avoids the concentration spike responsible for most reactions. In case of rosacea or an eczema flare-up, seek your dermatologist's advice before starting.
Can retinal be used in the summer?
Yes, by applying it in the evening and using sunscreen in the morning. Retinoids do not make the skin photosensitive in the allergic sense, but they accelerate cell turnover, and the new skin is more vulnerable to UV rays. In case of intense exposure, space out applications.
Can I use it while pregnant or breastfeeding?
No. Retinoids, including retinal, are not recommended during pregnancy and breastfeeding.
Does retinal act on dark spots?
Retinoids improve skin tone evenness by accelerating surface cell turnover. In a 28-day test, 95% of participants found their skin smoother, firmer, and more even.
Sa texture est fine et agréable. J’ai une peau plutôt sensible, très réactive voir fragile. Après plusieurs semaines d’utilisation de l’exosome je constate une peau souple, plus lumineuse. Elle n’agresse et n’écrase pas ma peau. Elle n’a rien à envier aux cosmétiques aux prix exorbitants. C’est une vraie découverte. Pour info, j’utilise également la vitamineC et le sérum hydratant de SkinDiligent. Matin et soir SkinDiligent !
J’utilise la crème exosome chaque soir après le retinal de skin diligent et j’adore. C’est le produit phare qui m’a fait découvrir skin diligent. Je recherchait un produit sérieux avec une formulation sûre pour essayer les exosomes et j’ai été conquise. Depuis j’ai craqué pour la routine complète jour et nuit de skin diligent et ma peau ne réclame rien d’autre ! Elle est juste équilibrée et bien hydratée. Ma peau est plus claire et rayonnante ! Je ne changerais pour rien au monde depuis que j’ai enfin trouvé LA routine simple et qui convient parfaitement à ma peau déjà mature.
I started with the vitamin C oil and loved it so much, best product i have ever used on my skin.
I then bought the set of woth 2 different oils and tge night cream. These products are amazing and the results almost instant...i will be skin diligent for the rest of my life now!! Thank you skin diligence and julia bradbury.
Parfait pour la nuit, de texture très légère, il hydrate ma peau, diminue les imperfections. Au réveil, ma peau est lumineuse, rebondie et ne tiraille plus.
I had to introduce my skin to your product over a week. Mixing it with other moisturiser. Now a few months on, my skin is fine using it at night on its own. Pigmentation gradually but definitely fading.
Un soin très agréable et une peau rebondie au matin.
Un confort pr la peau
.
Peau du visage impeccable avc cette gamme
I use this cream at night time. It is part of my very simple night time regime, after using the hydrating serum I then use this cream over the top. It goes into my skin beautifully and leaves my skin feeling soft but not sticky. It is helping to brighten my complexion and even my skin tone. Wonderful from day one.
amazing---my skin has never looked better. my teenage student said i looked 43 and i'm 58
Je l’adore
Son odeur, sa texture, sa composition et son efficacité.
La peau est plus douce, plus apaisée, plus unifiée. Un vrai plaisir de prendre soin de soi!
La seule chose qui m’ennuie est qu’on ne peut pas vérifier la quantité de crème restante dans le tube opaque.
J'adore tous vos produits. Ils ont vraiment amélioré la qualité et le confort de ma peau mature (j'ai 75 ans).
Comme j'ai la peau extrêmement sensible, j'utilise le rétinal avec précaution (1 à 2 fois par semaine). Pour l'instant, aucune irritation, mais ma peau est un peu sèche le lendemain.
Je reste très optimiste.
Je viens juste d'utiliser ce sérum et n'ai donc pas assez de retour sur son efficacité. Je peux néanmoins confirmer qu'il n'agresse pas la peau, qu'il est facile à utiliser, qu'il n'est pas gras sur la peau. Sérum prometteur pour le peu d'utilisations à ce jour.
Très bonne expérience. L'application du sérum est agréable et confortable pour la peau. Excellente tolérance. Impression d'une peau un peu plus ferme depuis 1mois et demi d'utilisation. Seul bémol : le sérum disparait un peu trop vite (faible quantité pour un usage au quotidien)
Bonjour,
Nous recommandons d'appliquer 3 à 5 gouttes pour le visage et le coup (a appliquer sur un visage tres légèrement humecte pour faciliter sa diffusion). Sur cette base d'utlisation et en l'appliquant tous les soirs, le serum va durer 3 mois.
J’aime son coté fluide facile à étaler, son odeur et le confort qu’elle donne à ma peau. J’aime moins que le récipient soit un flacon pompe j’aurais préféré en tube.
Bonne hydratation et confort
Je suis très satisfaite du résultat à 100%
Crème légère qui vient en complément des différents sérums, bien hydratante et confortable.
Peau hydratée et très douce au reveil
Consistance du produit et résultat très satisfaisant! Je recommande ce produit !
Je trouve que ma peau est en meilleure santé. J avais quelques rougeurs qui sont dissipée. Jbutilise la crème le soir apres le serum retinal
Très satisfaite
produit agréable texture légère
Peau confortable
N atténue pas les rougeurs
I feel it makes my skin feel dry and tight I’m afraid . Disappointed as it was expensive
We appreciate you taking the time to write this review.
Our Exosome Advanced Night Cream is formulated to be light in texture, but rich in ingredients to support the skin cells in their night time function - repair, regeneration and detoxification.
The product has been developed with Cellular Fitness in mind. Heavy rich creams can give you short term comfort but will never improve your dry skin. Such products make the skin 'lazy' to produce and regulate its own lipids. If you are used to using rich creams, it will take few weeks to train the skin. During the adjustment period, you can add an extra layer of serum such as our Vitamin C Serum in oil or add few drops of this serum into the cream, mix it and apply it. Then progressively, reduce the serum in oil. You can also combine the cream with our Cellular Hydration. So opt for Vitamin C serum in oil if you need more comfort and the Cellular Hydration if you need more plumping.
Hope this helps and don't hesitate to contact us directly for any other question you may have.
Un produit extremement efficace
super rétinol , n'agresse pas la peau , et fait le job .
Je recommande , et ce n'est pas le premier soin au rétinol que j'essaye , j'en ai ai essaye plein .
Too soon to see if this is helping the condition of my skin but it’s lovely to use, light and non-sticky. I’m adding in the Skin Diligent Retinal product as my skin really needs a boost! Overall I’m impressed with this product and looking forward to trying more.
Ma peau sensible le tolère et les résultats sont là. Ma peau est lumineuse, mon mari m’a demandé si j’étais maquillée ce we . non pq? Tu as bonne mine ma chérie . J’utilise toute la gamme de la marque et je vais bientôt acheter les pré/ pro biotiques pour voir si cela va agir sur les symptômes de la ménopause. En toute confiance.
J'aime sa texture fine et non grasse qui me convient parfaitement. Et le conditionnement est idéal 1 ou 2 pressions et c'est fait!!
Découverte grâce à Marine Vignes. J'utilise aussi le vitamine C sérum in oil.
Produits chers mais la qualité est mise en avant plutôt que la quantité.
J'envisage d'acheter un autre produit Skindiligent, cellular hydration. J'ai la soixantaine et ma peau demande des produits de qualité.
Le gel est très agréable et la peau est très repulpée au réveil. Un super produit, utilisable également le matin contrairement à la majorité des produits au rétinol 👌
Ce sérum agit efficacement sur l'aspect de la peau mais tout en douceur
