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Le Mieux24 Hr. Age Defying Cream
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A Loshen & Crem bestseller for lasting moisture, barrier support and smoother, firmer-looking skin

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Explore La Crem rewardsA 0.5% retinol serum for smoother texture, softened wrinkles and more refined-looking skin
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5238 Windermere Boulevard
Edmonton AB T6W 0L9
Canada
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Le Mieux
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$135.00 CAD
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The skincare focus
A 0.5% retinol serum for smoother texture, softened wrinkles and more refined-looking skin
Explore our ingredient glossaryLe Mieux
The ingredients behind this formula—and what they bring to your skin.
0.5% Retinol
Helps refine texture and improve the appearance of fine lines, wrinkles and uneven tone.
Hya10+ Complex
Supports hydration at multiple levels for softer, plumper-looking skin.
Galactomyces Ferment Filtrate
Conditions and hydrates while supporting visible radiance.
Ingredient imagery is illustrative. Explore the full ingredient list below.
Made to work together
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Your routine
A Loshen & Crem bestseller for lasting moisture, barrier support and smoother, firmer-looking skin
Your routine
A nourishing peptide cleanser for soft, supple and comfortably clean skin
Worth knowing
A closer look at your skin, your routine and what goes into the formula.
A 0.5% retinol serum for smoother texture, softened wrinkles and more refined-looking skin
Le Mieux Retinol Serum is an award-winning evening treatment formulated with 0.5% retinol to improve the appearance of fine lines, wrinkles, rough texture and uneven tone. The updated creamy formula combines retinol with firming peptides, apple fruit cell culture extract and antioxidant support for a smoother, more radiant complexion.
Le Mieux’s Hya10+ Complex—a blend of 10 forms of hyaluronic acid—is paired with galactomyces ferment filtrate, ceramide NP, conditioning oils and soothing ingredients to help maintain hydration and skin comfort while retinol supports visible renewal.
Although Le Mieux describes the formula as using a three-tier delivery system for improved tolerance, 0.5% retinol remains a meaningful concentration and can cause dryness, redness or peeling. Gradual introduction, consistent moisturizing and daily sunscreen are essential.
Galactomyces Ferment Filtrate, Sodium Hyaluronate, Oryza Sativa (Rice) Bran Water, Hyaluronic Acid, Zinc Hydrolyzed Hyaluronate, Hydroxypropyltrimonium Hyaluronate, Sodium Hyaluronate Dimethylsilanol, Sodium Hyaluronate Crosspolymer, C12-13 Alkyl Glyceryl Hydrolyzed Hyaluronate, Hydrolyzed Hyaluronic Acid, Sodium Acetylated Hyaluronate, Ascorbyl Propyl Hyaluronate, Pyrus Malus (Apple) Fruit Water, Acetyl Octapeptide-3, Palmitoyl Tetrapeptide-7, Malus Domestica Fruit Cell Culture Extract, Palmitoyl Pentapeptide-4, Palmitoyl Tripeptide-1, Acetyl Glycyl Beta-Alanine, Macadamia Ternifolia Seed Oil, Ceramide NP, Caprylic/Capric Triglyceride, Epigallocatechin Gallatyl Glucoside, Teprenone, Hydrolyzed Avocado Protein, Methyl Gluceth-20, Bisabolol, Stearyl Alcohol, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Glyceryl Stearate, Oryza Sativa (Rice) Bran Oil, Pistacia Lentiscus (Mastic) Gum, Allantoin, Retinol, Tocotrienols, Cyclodextrin, Phospholipids, Butyrospermum Parkii (Shea) Butter, Hydrolyzed Wheat Protein, Glycolipids, Aloe Barbadensis Leaf Extract, Vaccinium Myrtillus Fruit Extract, Maltodextrin, Soy Isoflavones, Xanthan Gum, Tocopherol, Caprylyl Glycol, Ethylhexylglycerin, Undecylenoyl Glycine, Capryloyl Glycine.
Ingredient lists may change. Always refer to the product packaging for the most current ingredient list, particularly if you have allergies or sensitivities. Contact info@loshen.ca if you need help reviewing the formula before purchasing.
For delivery and return information, view our policy.
A 0.5% retinol serum for smoother texture, softened wrinkles and more refined-looking skin
Le Mieux Retinol Serum is an award-winning evening treatment formulated with 0.5% retinol to improve the appearance of fine lines, wrinkles, rough texture and uneven tone. The updated creamy formula combines retinol with firming peptides, apple fruit cell culture extract and antioxidant support for a smoother, more radiant complexion.
Le Mieux’s Hya10+ Complex—a blend of 10 forms of hyaluronic acid—is paired with galactomyces ferment filtrate, ceramide NP, conditioning oils and soothing ingredients to help maintain hydration and skin comfort while retinol supports visible renewal.
Although Le Mieux describes the formula as using a three-tier delivery system for improved tolerance, 0.5% retinol remains a meaningful concentration and can cause dryness, redness or peeling. Gradual introduction, consistent moisturizing and daily sunscreen are essential.
Le Mieux Retinol Serum is particularly well suited to:
This may not be the ideal starting point for extremely reactive skin or anyone currently experiencing a compromised barrier, eczema flare, rosacea flare, active irritation or significant peeling.
The formula contains sweet almond oil and macadamia seed oil. Clients with known nut allergies should review the ingredient list with a qualified healthcare professional before use.
Le Mieux Retinol Serum combines a disclosed 0.5% retinol concentration with extensive hydration, barrier-supporting ingredients and a peptide complex. This creates a more complete evening treatment than a basic retinol-only formula.
Le Mieux describes its proprietary three-tier delivery system as a method of improving retinol delivery while minimizing irritation. This may support a more controlled experience, but it does not make the product irritation-free. Individual tolerance will still depend on skin condition, application frequency and the rest of the routine.
Use at night only.
After cleansing and toning, allow the skin to dry completely. Gently pat one pump onto the face, avoiding the eyelids, lips, corners of the nose and any broken or irritated skin. A second pump may be used for the neck and décolleté once tolerance has been established.
Follow with moisturizer. Do not rinse.
For new retinol users:
Apply broad-spectrum SPF 30 or higher every morning. Retinol results depend on consistent sun protection.
Avoid using exfoliating acids, peel pads, facial scrubs or other retinoids during the same evening routine, particularly while introducing the product.
Le Mieux Retinol Serum is a sophisticated option for clients ready for a meaningful 0.5% retinol treatment. Despite its hydrating base, it should still be introduced slowly. Starting with one pump once weekly is more sensible than beginning with nightly use.
Apply it to completely dry skin. Damp skin can increase penetration and may make retinol feel more irritating. Follow with Essence Moisturizer, Bio Cell Rejuvenating Cream or 24 Hr. Age Defying Cream according to your skin’s moisture needs.
If your skin is dry or sensitive, use the “retinol sandwich” method:
Do not combine it on the same evening with Beta Acid, 5% Glyco-Polymer Solution, Perfect Renewal, Skin Clarifying Pads, Vita-C Clear Skin Pads, Exfoliating Cleansing Gel, Microderm Exfoliant or Le Mieux Brightening Serum when first establishing tolerance.
Le Mieux Retinol Serum should be applied by hand. It is specifically listed as incompatible with the Ionized Oxygen Infuser. We also recommend avoiding the Skin Perfecter’s cleansing, extraction or exfoliation setting during the same evening routine.
Persistent burning, swelling, cracking or severe peeling is not a sign that the product is working better. Pause use and focus on gentle cleansing, moisturizing and sun protection until the skin has recovered.
Keep the routine simple on retinol nights. Exfoliating cleansers, peel pads and acid treatments should be reserved for separate evenings once tolerance has been established.
Choose Retinol Serum when the priority is visible renewal, wrinkles, rough texture, photoaging and uneven tone. Its 0.5% retinol concentration makes it the most active—and potentially irritating—of these three options.
Choose Collagen Peptide Serum when the priority is rich hydration, peptides, barrier support and firmer-looking skin. It contains retinyl palmitate, a milder vitamin A derivative, but it is not positioned as a 0.5% retinol treatment.
Choose TGF-β Booster when the priority is lightweight hydration and peptide-focused age support without retinol. It may be more appropriate when retinol is not tolerated, although individual sensitivities still apply.
Retinol, retinal and tretinoin belong to the vitamin A family, but they are not interchangeable.
Retinol must be converted within the skin first to retinaldehyde and then to retinoic acid. Retinal requires one conversion step, while tretinoin is already retinoic acid and is generally available as a prescription medication.
A 0.5% retinol serum should therefore not be compared directly with a 0.5% tretinoin product. The percentages, delivery systems and biological activity are different.
The formula contains retinol at a stated concentration of 0.5%. This is commonly considered a meaningful mid-strength concentration in non-prescription skincare.
Concentration is only one part of the formula. Stability, packaging, supporting ingredients, delivery system, application amount and frequency all influence the experience. Using more product will not accelerate results and can substantially increase irritation.
Mild dryness, tightness or light flaking may occur while the skin adjusts to retinol. This temporary adjustment is sometimes called retinization.
Persistent burning, swelling, intense redness, cracking or painful peeling should not be treated as a necessary adjustment period. These signs indicate that the skin needs a break or that the product is being used too frequently.
“Purging” is also not an explanation for every reaction. Retinol may temporarily bring existing congestion to the surface in breakout-prone areas, but widespread itching, burning or rash-like irritation is not typical purging.
Le Mieux’s Hya10+ Complex combines 10 forms of hyaluronic acid:
These ingredients support hydration and a temporarily plumper, smoother appearance. They do not create permanent facial volume or replace injectable treatments.
Le Mieux describes Retinol Serum as using a revolutionary three-tier delivery system intended to deliver visible results with less irritation.
The public product information does not provide detailed release curves, comparative tolerance data or a finished-product clinical study for this delivery system. It is therefore most accurate to treat it as a formulation feature—not a guarantee that irritation will not occur.
Full Ingredient List:
Galactomyces Ferment Filtrate, Sodium Hyaluronate, Oryza Sativa (Rice) Bran Water, Hyaluronic Acid, Zinc Hydrolyzed Hyaluronate, Hydroxypropyltrimonium Hyaluronate, Sodium Hyaluronate Dimethylsilanol, Sodium Hyaluronate Crosspolymer, C12-13 Alkyl Glyceryl Hydrolyzed Hyaluronate, Hydrolyzed Hyaluronic Acid, Sodium Acetylated Hyaluronate, Ascorbyl Propyl Hyaluronate, Pyrus Malus (Apple) Fruit Water, Acetyl Octapeptide-3, Palmitoyl Tetrapeptide-7, Malus Domestica Fruit Cell Culture Extract, Palmitoyl Pentapeptide-4, Palmitoyl Tripeptide-1, Acetyl Glycyl Beta-Alanine, Macadamia Ternifolia Seed Oil, Ceramide NP, Caprylic/Capric Triglyceride, Epigallocatechin Gallatyl Glucoside, Teprenone, Hydrolyzed Avocado Protein, Methyl Gluceth-20, Bisabolol, Stearyl Alcohol, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Glyceryl Stearate, Oryza Sativa (Rice) Bran Oil, Pistacia Lentiscus (Mastic) Gum, Allantoin, Retinol, Tocotrienols, Cyclodextrin, Phospholipids, Butyrospermum Parkii (Shea) Butter, Hydrolyzed Wheat Protein, Glycolipids, Aloe Barbadensis Leaf Extract, Vaccinium Myrtillus Fruit Extract, Maltodextrin, Soy Isoflavones, Xanthan Gum, Tocopherol, Caprylyl Glycol, Ethylhexylglycerin, Undecylenoyl Glycine, Capryloyl Glycine.
Ingredient lists may change. Always refer to the product packaging for the most current ingredient list, particularly if you have allergies or sensitivities. Contact info@loshen.ca if you need help reviewing the formula before purchasing.
Le Mieux Retinol Serum contains 0.5% retinol.
It can be introduced by beginners, but 0.5% is a meaningful concentration and should be approached carefully. Begin once weekly and increase only when the skin remains comfortable. Highly reactive clients may prefer to begin with a gentler retinol concentration or a non-retinoid alternative such as bakuchiol.
Not immediately. Begin once weekly, progress to twice weekly and then consider every-other-night use. Nightly application is appropriate only after tolerance has been established.
One pump is generally enough for the face. A second pump may be used for the neck and décolleté once those areas have developed tolerance. Applying more will increase the likelihood of irritation without necessarily improving results.
Applying retinol to damp skin may increase penetration and make the treatment feel more irritating. After cleansing, allow the skin to dry completely before applying the serum.
Yes. Retinol can cause dryness, tightness, redness or flaking, especially when introduced too frequently. Reduce application frequency and use a supportive moisturizer if this occurs.
No. Visible peeling is not required for results. Persistent peeling or burning generally means the routine is too aggressive.
Possibly, but 0.5% retinol may be too active for highly reactive or compromised skin. Patch test first, begin once weekly and use the moisturizer-sandwich method. Do not apply during an active eczema or rosacea flare without professional guidance.
Retinol may help refine congestion and uneven texture, but this is not an acne medication. The formula also contains several oils and shea butter, so its creamy texture may feel rich on very oily or highly congestion-prone skin.
No. The serum may support clearer-looking pores and more refined texture, but it should not be presented as a treatment for acne. Persistent or inflammatory acne should be assessed by a qualified healthcare professional.
Retinol can support a more even-looking complexion over time by encouraging visible renewal. For clients whose primary concern is pigmentation, Le Mieux Brightening Serum may provide a more targeted approach. Do not begin both treatments during the same week.
Use them on alternate evenings rather than layering them together. Both are active nighttime treatments, and combining them may increase dryness or irritation.
Avoid using exfoliating acids during the same evening routine, especially while introducing retinol. Once tolerance is well established, the products may be alternated on separate nights.
Yes, but separating the treatments is usually more comfortable. Use Vita-C Serum in the morning and Retinol Serum at night, followed by daily sunscreen.
Collagen Peptide Serum contains retinyl palmitate, another vitamin A derivative. Rather than layering both products, alternate them or use Collagen Peptide Serum during a period when Retinol Serum is paused.
Do not apply it to the eyelids or directly beneath the eyes unless specifically advised by a skincare professional. Use a dedicated eye treatment around the orbital area.
Yes, but these areas may be more sensitive than the face. Begin with a small amount once weekly and increase slowly.
No parfum, fragrance or essential oils appear in the current published ingredient list. Individual botanical ingredients can still have a natural scent.
The published formula contains hydrolyzed wheat protein. It should therefore not be marketed as gluten-free without direct confirmation from the manufacturer.
The formula contains sweet almond oil and macadamia seed oil. Anyone with a known allergy should consult a qualified healthcare professional and review the packaging before use.
No. Dermatology guidance recommends avoiding retinoids during pregnancy. Anyone pregnant or trying to conceive should stop using the product and consult their physician.
Safety information for cosmetic retinol during breastfeeding is limited. Consult a physician or qualified healthcare provider before use, and never apply it to areas that may contact the infant.
Retinol can increase sensitivity. Pause it before and after waxing, laser treatments, professional peels or other resurfacing procedures according to the timeline provided by your treatment professional.
Only when the professional performing the procedure confirms that the skin has recovered sufficiently. Do not apply it to broken, inflamed or actively peeling skin.
No. Le Mieux specifically lists Retinol Serum as incompatible with the Ionized Oxygen Infuser.
Apply Retinol Serum by hand. Avoid using the Skin Perfecter’s cleansing, extraction or exfoliation setting during the same evening, as this may increase sensitivity.
Hydration and softness may be noticed relatively quickly, while texture, tone and wrinkle improvements require consistent use. Allow at least eight to twelve weeks to assess visible progress, with fine-line improvements potentially requiring several months. Individual results vary.
Pause the serum and use a gentle cleanser, moisturizer and sunscreen until the skin is comfortable. When restarting, reduce the application frequency. Discontinue use and seek professional advice if swelling, severe burning, blistering or persistent irritation occurs.
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Returns & order support
Helps refine texture and improve the appearance of fine lines, wrinkles and uneven tone.
Supports hydration at multiple levels for softer, plumper-looking skin.
Conditions and hydrates while supporting visible radiance.
Helps reinforce the moisture barrier.
Curious about your ingredients?
Explore La Matière
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We’re here to helpFrom our Edmonton boutique
Discover Le Mieux Retinol Serum at Loshen & Crem, a skin-health boutique and facial studio in Edmonton, Alberta. Explore the Le Mieux collection online across Canada, or speak with our facialists about how this formula fits into the products you already use.
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