Smoothing Face Oil Serum
Smoothing Face Oil Serum
A luxurious face oil-in-serum—infused with rare Moonlight Flower cryoextract—renews overnight to visibly firm, plump, nourish + comfort while you sleep.
Couldn't load pickup availability
Smoothing Face Oil Serum
check_box
What it is
What it is
- Skin type: Normal, Oily, Combination, Dry
- Texture: Oil, Serum
- Use: Apply to clean skin each evening.
Benefits
- Visibly firms + plumps + hydrates + smoothes + revitalizes
- Nourishes + comforts
- Targets early lines + wrinkles
- Renews overnight
- Reinforces skin's moisture barrier
Learn More
A new vision of luxury—rare, powerful, committed to responsible beauty. Inspired by plants and driven by science, this intensive face oil-in-serum for night combines over 7,900 encapsulated micropearls of oil suspended within a serum for ultra-potent, double anti-aging power that promotes optimal nighttime renewal while reinforcing skin's moisture barrier by 35% in only 1 hour.¹ Infused with precious Moonlight Flower cryoextract, a trio of revitalizing and replenishing anti-aging peptides to visibly firm, plump, nourish, and renew overnight.
RARE FLOWER
Off the coast of Brittany, France, grows the elusive Moonlight Flower--the beating heart of our Precious skincare collection. This plant blooms one night a year, and only for a few hours, bearing flowers so exceptionally rare, they are harvested by hand when they reach their full molecular richness. Picked at the peak of their beauty and potency, the flowers are immediately frozen at -196°C (-320.8°F) to harness an anti-aging cryoextract—a precious ingredient that is exclusive to Clarins. With years of research, and only one night to capture its power, this cutting-edge, green, natural cryoextraction process preserves the flower’s most fragile, youth-promoting active ingredients, to visibly boost the skin’s resistance to aging.
RARE SCIENCE
L’Huile en Sérum’s 2-in-1 texture is the product of Clarins’ exclusive NEW Microfluidic Technology—a pioneering scientific method that combines an oil phase + a serum phase for optimal nighttime renewal and reinforcement. The oil phase is enriched with encapsulated micro-pearls to preserve each active ingredient for every dose - contains Organic Wakame* extract to reinforce the skin’s moisture barrier + Organic Sweetbriar Rose Oil* to nourish and comfort. The serum phase helps renew powered by Clarins’ exclusive Precious Skin Age-Delaying Technology, our most advanced innovation to visibly boost skin’s resistance to aging while replenishing and revitalizing skin. This blend of Moonlight Flower cryoextract, rich in Gallic acid—a potent antioxidant and soothing molecule—+3 biomimetic anti-aging peptides, targets early lines and wrinkles, and restores the plump, smooth, vibrant look of youth. Visibly firming Hydrated Silica of Moonstone encourages renewal to help reduce signs of aging while Organic Leaf of Life* extract powers the skin’s natural hydration. This intensive nighttime treatment leaves even the most fatigued skin looking rested, nourished, and refreshed for younger-looking skin, night-after-night.
A luxurious evening ritual, L’Huile en Sérum’s silky oil-in-serum texture provides a sensorial experience that feels as light as a serum and as comfortable as an oil.
A master perfumer, Dorothée Piot, from one of the most esteemed fragrance houses in Grasse, France, was commissioned to craft a signature floral scent to capture the essence of Precious—which beautifully combines a delicate caress of Vanilla and Peony, with hints of Peach, Cedar Wood and Musk. The unique, recyclable bottle was inspired by nature and designed in Paris. Responsible luxury for your skin and senses.
1Clinical test - 32 women - after using L’Huile en Sérum (Oil in Sérum)
*Organic ingredients are produced in accordance with European regulation (CE 2018/848).
Innovation and plant expertise
L'Huile en Sérum is a 2-in-1 face oil serum powered by 96% ingredients of natural origin, and is the product of Clarins’ proprietary NEW Microfluidic Technology--a pioneering scientific method that combines an oil phase + a serum phase for ultra-potent, double anti-aging power that promotes optimal nighttime renewal. The oil phase combines 7,900+ encapsulated micro-pearls infused with nourishing Organic Sweetbriar Rose Oil* + fortifying Organic Wakame* extract. The serum phase is powered by visibly firming Hydrated Silica of Moonstone and our innovative Precious Skin Age-Delaying Technology—a combination of age-defying Moonlight Flower cryoextract + a trio of biomimetic revitalizing and replenishing biopeptides that visibly firm, replenish, and fight wrinkles. Together, the two phases provide ultra-potent, anti-aging recovery that promises a restorative night’s sleep for all skin types.
check_box
Results
Results
AFTER 28 days:
+54%*visibly firmer skin
- +60%* more nourished skin
- -40%* visibly reduced fine lines + wrinkles
*Structured scale self assessment - 100 women - 28 days after using L’Huile en Sérum
check_box
Ingredients
Ingredients
AQUA/WATER/EAU. GLYCERIN. 2,3-BUTANEDIOL. BETAINE. CAPRYLIC/CAPRIC TRIGLYCERIDE. PENTYLENE GLYCOL. LIMNANTHES ALBA (MEADOWFOAM) SEED OIL. COCO-CAPRYLATE/CAPRATE. ROSA RUBIGINOSA SEED OIL. DIGLYCERIN. CASTOR OIL/IPDI COPOLYMER. BUTYLENE GLYCOL. ORBIGNYA OLEIFERA SEED OIL. BUTYROSPERMUM PARKII (SHEA) BUTTER. PARFUM/FRAGRANCE. CHLORPHENESIN. CARBOMER. TOCOPHERYL ACETATE. TRISODIUM ETHYLENEDIAMINE DISUCCINATE. SODIUM HYDROXIDE. SODIUM LACTATE. CARAMEL. KALANCHOE PINNATA LEAF EXTRACT. COCO-GLUCOSIDE. CITRIC ACID. SODIUM BENZOATE. UNDARIA PINNATIFIDA EXTRACT. TOCOPHEROL. CEREUS GRANDIFLORUS (CACTUS) FLOWER EXTRACT. POTASSIUM SORBATE. HYDRATED SILICA. PALMITOYL TRIPEPTIDE-1. PALMITOYL TETRAPEPTIDE-7. ACETYL TETRAPEPTIDE-2. DEXTRAN. [STV4351A]
*For information purposes only. As all products are subject to change, please also consult the list of ingredients on the packaging of the product you receive.

-
Emily
May 18, 2026
Honestly didn’t expect much at this price, but it really surprised me. My skin feels smoother and more hydrated after a week. Shipping took about 8 days, but worth the wait.
132
10 Comments
LikeCommentShare -
Jessica
May 16, 2026
Very affordable compared to what I usually buy, and the results are actually visible. My skin looks more even and fresh.
147
15 Comments
LikeCommentShare -
Sarah
May 14, 2026
Great value for money. I’ve tried more expensive serums and this one performs just as well for daily use. Delivery was a bit slow, but customer support kept me updated.
101
6 Comments
LikeCommentShare -
Amanda
May 12, 2026
For this price, I’m honestly impressed. Lightweight, absorbs quickly, and doesn’t irritate my skin. Took around a week to arrive, but I’ll reorder.
89
7 Comments
LikeCommentShare -
Lauren
April 29, 2026
Affordable and effective. I’ve been using it daily and can see gradual improvement. Shipping delay was a bit annoying, but not a dealbreaker.
98
12 Comments
LikeCommentShare -
Megan
April 20, 2026
Worth the price for sure. Not a miracle overnight product, but consistent results over time. Shipping was slower than Amazon, but acceptable.
115
13 Comments
LikeCommentShare
FAQ
check_box
Why are your products so affordable?
Why are your products so affordable?
We source our products through authorized wholesale channels and global distribution partners.
By operating exclusively online and minimizing retail overhead costs (such as physical stores and excessive marketing expenses), we’re able to offer more competitive pricing than traditional retailers.
check_box
Are your products authentic?
Are your products authentic?
Yes — all our products are 100% authentic items.
We work with trusted suppliers and ensure every product meets original brand standards.
Batch codes are intact and can be verified.
check_box
Why is there currently a discount?
Why is there currently a discount?
We frequently run limited-time promotions due to bulk purchasing and inventory cycles.
This allows us to pass additional savings directly to our customers.
check_box
Do your products come in original packaging?
Do your products come in original packaging?
Most products come in original packaging.
In some cases (such as promotional batches or logistics optimization), outer packaging may be simplified, but the product itself remains authentic and unused.
check_box
Do you offer free shipping?
Do you offer free shipping?
Yes — we currently offer free shipping on all orders, with no minimum purchase required.
check_box
What if I’m not satisfied?
What if I’m not satisfied?
We offer a 30-Day Money-Back Guarantee.
If you’re not completely satisfied, you can request a full refund within 30 days of receiving your order—no questions asked.
check_box
Can I verify the product?
Can I verify the product?
Yes. You can check the batch code on the packaging to verify production details.
We only sell products sourced from legitimate supply chains.