BI-PHASE DUO
The Bi-Phase Duo combines the Cellular Hydration Serum and the Vitamin C Serum-in-Oil to provide everything the skin biologically needs throughout the day: hydration, antioxidant protection, and a strengthened skin barrier. A water-based + oil-based synergy that replaces your day cream.
- Multi-level hydration
- Triple antioxidant shield
- Reinforced skin barrier
- Replaces a day cream
30ml + 30ml
dès 59 €
4 à 5 jours
INGREDIENTS
INGREDIENTS (INCI)
Vitamin C Serum-in-Oil :
Cannabis sativa seed oil*, Theobroma cacao extract, Brassica napus extract, Camelina sativa seed oil*, Ascorbyl tetraisopalmitate, Punica granatum extract*, Helianthus annuus seed oil, Moringa oleifera seed oil, Protium heptaphyllum resin, Parfum
*Ingredients from organic farming
100% natural fragrance
Cellular Hydration Serum :
Aqua, Propanediol, Glycerin, Inulin, Helianthus annuus seed oil, Protium heptaphyllum resin, Caesalpinia spinosa gum, Sodium hyaluronate, Aloe barbadensis leaf juice powder, Magnesium Chloride, Saccharomyces/Grape ferment extract, Lactobacillus ferment, Coco glucoside, Decyl glucoside, Ethyl lauroyl arginate HCl, Sodium citrate, Sodium benzoate, Perfume (100% natural origin)
EMBALLAGE
WHAT MAKES THE DIFFERENCE.
DESIGNED FOR MORNING BIOLOGY.
During the day, the skin switches to defense mode. The Duo meets its essential needs from the morning to help it better cope with oxidative stress, UV rays, and external aggressors.
4 NEEDS. 2 FORMULAS.
Hydration, nourishment, antioxidant defense, and microbiome balance: two complementary formulas, one aqueous, the other oily, to act on all four at once. No more need for a day cream.
Tested for the absence of estrogenic and androgenic endocrine disruption.
VISIBLE RESULTS, SCIENTIFICALLY VALIDATED.
more hydrated skin*
healthier and more even-toned skin*
prevention of blemishes and breakouts*
reduction of fine lines*
*Based on a 28-day clinical study of 20 men and women aged 18 to 60, using the Vitamin C Serum-in-Oil once daily.
TESTED WITHOUT ESTROGENIC-TYPE ENDOCRINE DISRUPTION
SKIN DILIGENT IS THE FIRST BRAND TO TEST ITS SKINCARE FORMULAS ON LIVING CELLS TO DETECT ENDOCRINE DISRUPTIONS, IN ORDER TO GUARANTEE THE SAFETY OF ITS PRODUCTS FOR PREGNANT WOMEN, BREASTFEEDING MOTHERS AND WOMEN IN THE POST-TREATMENT PHASE FOR ESTROGEN-RELATED CANCER
DID YOU KNOW?
To truly hydrate the skin, you must act in two stages.
First, provide water to the skin to plump it up and restore its bounce. Then, help retain this water with lipids, to limit evaporation and strengthen the skin barrier.
That is why the DUO combines a water-based serum with an oil: the former intensely hydrates, while the latter helps seal in moisture while providing antioxidant protection.
Two complementary steps for enhanced, longer-lasting hydration, and skin that is better protected throughout the day.
FAQ - FREQUENTLY ASKED QUESTIONS
What is the order of application?
For the morning routine, on a clean face and slightly damp skin, first apply 3-5 drops of Cellular Hydration Serum. It is an ideal product for a quick facial massage.
Then apply 3-5 drops of Vitamin C Serum-in-Oil.
There is no need to apply a moisturizer in addition because applying an aqueous phase followed by a lipid phase creates a mini emulsion on the skin which is already the equivalent of a moisturizer.
I sometimes get pimples on my chin. Can both serums help?
Yes, the antioxidant and anti-inflammatory elements will help minimize acne and blemishes. If you have occasional breakouts, massage them for a few seconds with a drop of Vitamin C Serum-in-Oil, which will make them disappear more quickly. Then follow with the usual combination of Cellular Hydration Serum + Vitamin C Serum-in-Oil for the entire face.
Can I use the two serums separately?
Yes. Each formula can be used on its own and has its own benefits.
Why use the Dual-Phase Duo in the morning?
During the day, the skin must contend with UV rays, pollution, and oxidative stress. It is also the time when it mobilizes its natural defense mechanisms.
The Bi-Phase Duo was designed around this biology: to hydrate, support the skin barrier, and provide antioxidant protection from the start of the day.
Can vitamin C be used in the morning?
Yes. Skin Diligent uses a lipid-soluble and stable form of vitamin C, Ascorbyl Tetraisopalmitate, which is resistant to oxidation and is not photosensitive.
It is particularly suitable for use in the morning, when the skin is more exposed to oxidative stress.
Can I apply my SPF and makeup over it?
Yes. First, apply the Cellular Hydration Serum to slightly damp skin, then the Vitamin C Serum-in-Oil. Once the formulas have been absorbed, finish with your sun protection.
Makeup can then be applied as usual.
Is the Bi-Phase Duo suitable for sensitive skin?
Both formulas have been designed to prioritize efficacy and tolerance. The vitamin C used by Skin Diligent is specifically a non-acidic form, better suited to skin that does not tolerate traditional forms well.
In the case of particularly reactive skin or a known allergy, it is always best to introduce any new skincare product gradually.