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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 multi-action peptide, vitamin C and brightening serum for fine lines, uneven tone and dehydration
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Le Mieux
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The skincare focus
A multi-action peptide, vitamin C and brightening serum for fine lines, uneven tone and dehydration
Explore our ingredient glossaryLe Mieux
The ingredients behind this formula—and what they bring to your skin.
Hya10+ Complex
Ten forms and derivatives of hyaluronic acid that help hydrate, soften and visibly plump the skin.
Galactomyces Ferment Filtrate
Forms the fermented base of the serum and supports conditioning, brightness and antioxidant care.
Palmitoyl Tripeptide-5
Helps improve the appearance of firmness and wrinkles.
Ingredient imagery is illustrative. Explore the full ingredient list below.
Made to work together
Explore another step in your face-care routine.
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 multi-action peptide, vitamin C and brightening serum for fine lines, uneven tone and dehydration
Le Mieux Rx Complex Serum is an award-winning, multi-action treatment created for clients who want to address several visible concerns without layering an entire wardrobe of serums. Its sophisticated formula combines peptides, ten forms of hyaluronic acid, tranexamic acid, niacinamide, magnesium ascorbyl phosphate, ceramide NS and antioxidant ingredients.
The fermentation-based serum helps hydrate and visibly plump the skin while improving the appearance of fine lines, uneven tone, dark spots, dullness and irregular texture. Lightweight botanical oils, beta-glucan and aloe complement the active ingredients with conditioning and barrier-supportive benefits.
Rx Complex Serum can replace several targeted serums within a simplified routine, but it is not literally an entire skincare regimen in one bottle. Most clients will still need an appropriate cleanser, moisturizer and broad-spectrum sunscreen.
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, Palmitoyl Tripeptide-5, Acetyl Octapeptide-3, Nonapeptide-1, Hydrolyzed Oryza Sativa (Rice) Protein, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1, Tranexamic Acid, Niacinamide, Magnesium Ascorbyl Phosphate, Ceramide NS, Superoxide Dismutase, Propanediol, Phospholipids, Lysolecithin, Tocotrienols, Glucosamine HCl, Enteromorpha Compressa Extract, Bambusa Vulgaris Leaf/Stem Extract, Citrullus Lanatus (Watermelon) Seed Oil, Yeast Extract, Saccharomyces Ferment Filtrate, Saccharomyces Lysate Extract, Pisum Sativum (Pea) Extract, Adansonia Digitata Seed Oil, Beta-Glucan, Adansonia Digitata Fruit Extract, Aloe Barbadensis Leaf Juice, Simmondsia Chinensis (Jojoba) Seed Oil, Pullulan, Sclerotium Gum, Oryza Sativa (Rice) Bran Oil, Glyceryl Oleate Citrate, Rosmarinus Officinalis (Rosemary) Leaf Extract, Tocopherol, Xanthan Gum, Sodium Citrate, Sodium Phytate, Fragrance, 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 multi-action peptide, vitamin C and brightening serum for fine lines, uneven tone and dehydration
Le Mieux Rx Complex Serum is an award-winning, multi-action treatment created for clients who want to address several visible concerns without layering an entire wardrobe of serums. Its sophisticated formula combines peptides, ten forms of hyaluronic acid, tranexamic acid, niacinamide, magnesium ascorbyl phosphate, ceramide NS and antioxidant ingredients.
The fermentation-based serum helps hydrate and visibly plump the skin while improving the appearance of fine lines, uneven tone, dark spots, dullness and irregular texture. Lightweight botanical oils, beta-glucan and aloe complement the active ingredients with conditioning and barrier-supportive benefits.
Rx Complex Serum can replace several targeted serums within a simplified routine, but it is not literally an entire skincare regimen in one bottle. Most clients will still need an appropriate cleanser, moisturizer and broad-spectrum sunscreen.
Rx Complex Serum is particularly well suited to:
The formula contains fragrance. Those with highly sensitive, fragrance-reactive or recently compromised skin should patch test carefully or select a fragrance-free alternative.
Rx Complex Serum combines ingredients usually divided among several products: hyaluronic acid for hydration, peptides for visible lines and firmness, tranexamic acid and niacinamide for uneven tone, a vitamin C derivative for brightness and antioxidants for environmental support.
Galactomyces ferment filtrate is the first listed ingredient, followed by the brand’s Hya10+ complex. Ceramide NS, phospholipids, beta-glucan, aloe and lightweight botanical oils provide additional conditioning within a treatment focused on multiple visible signs of aging.
Use in the morning and evening.
After cleansing and toning, apply three to five drops to the face and neck. Gently press the serum into the skin until absorbed.
Follow with moisturizer. Apply broad-spectrum sunscreen every morning, particularly when uneven pigmentation or dark spots are among your concerns.
When layering multiple products, use Rx Complex Serum after watery mists or toners and before creams, facial oils and sunscreen.
If your skin is sensitive or you are introducing several new active products, begin once daily and increase to morning and evening use once the skin remains comfortable.
Rx Complex Serum is our choice for the client who wants one intelligent, comprehensive treatment rather than five open bottles competing for attention—and bathroom counter space.
It can comfortably take the place of a separate hyaluronic serum, peptide serum and basic brightening serum for many clients. It cannot replace moisturizer or sunscreen, and no serum should be expected to “erase” aging.
Begin with three drops. Follow with Essence Moisturizer for a lightweight finish or 24 Hr. Age Defying Cream when the skin needs additional richness and barrier support.
For uneven pigmentation, consistency matters more than intensity. Apply Rx Complex Serum regularly, protect the skin from daily ultraviolet exposure and avoid constantly switching between brightening products. Persistent melasma or complex pigmentation generally requires a more targeted professional plan; Rx Complex Serum should not be presented as a complete melasma treatment.
Because fragrance appears in the ingredient list, this would not be our first selection for highly fragrance-reactive skin or immediately after a procedure. EGF-DNA Serum, Hyaluronic Serum or another fragrance-free option may be more appropriate depending on the concern.
This routine already provides peptides, hyaluronic acid, antioxidants and brightening ingredients. Additional serums should be added only when they address a concern not adequately covered by Rx Complex Serum.
Although these serums overlap in certain benefits, each has a different emphasis.
Most clients do not need all of these serums in the same routine. Selecting the formula that most closely matches the primary concern usually creates a more consistent—and much less chaotic—regimen.
Rx Complex Serum is designed to consolidate several treatment steps, not eliminate the fundamental structure of a skincare routine.
A complete morning routine still requires:
The serum provides humectants, peptides, pigment-supporting ingredients, antioxidants and some lightweight lipids. However, it may not provide enough emollience for dry skin and does not provide sun protection.
The most significant benefit of an all-in-one serum is often consistency. A well-formulated product used every day will generally serve the skin better than an elaborate routine used only when someone has the patience, energy and correct moon phase.
Rx Complex Serum approaches uneven tone with several complementary ingredients rather than depending on one brightening active.
Tranexamic acid is used topically in cosmetic formulas to improve the appearance of uneven pigmentation. Niacinamide supports barrier function and a more balanced-looking complexion, while magnesium ascorbyl phosphate provides vitamin C-derived antioxidant and brightening benefits.
The concentrations of these ingredients are not disclosed on the public product page. Rx Complex Serum should therefore be presented as a multi-action brightening treatment rather than compared directly with a dedicated high-percentage tranexamic acid, niacinamide or vitamin C serum.
Daily sunscreen remains essential. No brightening serum can produce reliable, lasting improvement while the skin continues to receive unprotected ultraviolet exposure.
Rx Complex Serum contains several peptides selected for different visible concerns.
Acetyl Octapeptide-3 and Syn®-Ake are frequently described as targeting expression lines. These cosmetic peptides are intended to soften the visible appearance of lines, but they are not injectable neuromodulators and should not be compared with Botox or described as paralyzing facial muscles.
Palmitoyl Tripeptide-5, Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7 support a smoother, firmer-looking complexion. The presence of peptides does not guarantee a specific amount of new collagen, and results depend on the complete formulation, consistency of use and the individual’s skin.
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, Palmitoyl Tripeptide-5, Acetyl Octapeptide-3, Nonapeptide-1, Hydrolyzed Oryza Sativa (Rice) Protein, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1, Tranexamic Acid, Niacinamide, Magnesium Ascorbyl Phosphate, Ceramide NS, Superoxide Dismutase, Propanediol, Phospholipids, Lysolecithin, Tocotrienols, Glucosamine HCl, Enteromorpha Compressa Extract, Bambusa Vulgaris Leaf/Stem Extract, Citrullus Lanatus (Watermelon) Seed Oil, Yeast Extract, Saccharomyces Ferment Filtrate, Saccharomyces Lysate Extract, Pisum Sativum (Pea) Extract, Adansonia Digitata Seed Oil, Beta-Glucan, Adansonia Digitata Fruit Extract, Aloe Barbadensis Leaf Juice, Simmondsia Chinensis (Jojoba) Seed Oil, Pullulan, Sclerotium Gum, Oryza Sativa (Rice) Bran Oil, Glyceryl Oleate Citrate, Rosmarinus Officinalis (Rosemary) Leaf Extract, Tocopherol, Xanthan Gum, Sodium Citrate, Sodium Phytate, Fragrance, 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.
It combines hydration, peptides, antioxidants and complexion-brightening ingredients within one serum, so it may replace several treatment products. It does not replace cleanser, moisturizer or broad-spectrum sunscreen.
No cosmetic serum can erase every line or reverse the aging process. Rx Complex Serum can hydrate and visibly plump the skin while helping soften the appearance of fine lines and wrinkles with consistent use.
Tranexamic acid, niacinamide, nonapeptide-1 and magnesium ascorbyl phosphate support a brighter, more even-looking complexion. Results vary according to the type and depth of pigmentation, and daily sunscreen is essential.
No. It contains ingredients that may support the appearance of more even pigmentation, but melasma is complex and frequently requires a professionally guided program. Rx Complex Serum should not be presented as a stand-alone melasma treatment.
The formula contains magnesium ascorbyl phosphate, a water-soluble vitamin C derivative, as well as ascorbyl propyl hyaluronate. It does not list pure L-ascorbic acid.
Le Mieux does not disclose the tranexamic acid concentration on the current public product page. It should not be compared directly with a dedicated high-percentage tranexamic acid treatment.
Hya10+ is Le Mieux’s blend of ten different forms and derivatives of hyaluronic acid. These ingredients help provide hydration, visible plumpness and a smoother-feeling surface.
No. Syn®-Ake is a cosmetic peptide used to soften the appearance of expression lines. It is not botulinum toxin, does not work like an injectable neuromodulator and should not be described as freezing or paralyzing facial muscles.
Individual tolerance varies. The formula contains several hydrating and barrier-supportive ingredients, but it also contains fragrance and a complex mixture of active ingredients and botanical extracts. Highly sensitive or fragrance-reactive skin should patch test carefully.
No. Fragrance is included in the published ingredient list.
Its serum texture may suit some combination or oily complexions, but the formula also contains several botanical oils and fragrance. Begin with a small amount and patch test if you are prone to congestion or sensitivity. It is not an acne treatment.
Yes, provided your skin tolerates the combination. Apply Rx Complex Serum before moisturizer. If sensitivity develops, use the serum in the morning and retinol in the evening or alternate evenings.
It does not contain a primary exfoliating acid, so it may be combined with an acid routine. However, sensitive skin may become overwhelmed by too many active products. Alternate applications if the skin becomes tight, shiny, red or uncomfortable.
Usually, a second vitamin C serum is unnecessary because Rx Complex already contains magnesium ascorbyl phosphate. A separate formula may be considered when a stronger vitamin-C-focused treatment is required and the skin tolerates it, but more ingredients do not automatically produce better results.
You can, but the combination is often redundant. Rx Complex Serum already contains ten forms and derivatives of hyaluronic acid. Add Hyaluronic Serum only if a skincare professional determines that your routine needs additional humectant hydration.
Not for most clients. The serum provides hydration and some lightweight lipids, but dry or mature skin will generally need a moisturizer to supply additional emollience and reduce moisture loss.
Le Mieux recommends three to five drops for the face and neck. Begin with three drops and add more only if needed.
Yes. Apply it morning and evening after cleansing and toning. Follow with sunscreen during the day.
Hydration and visible plumpness may be noticeable quickly. Improvements in uneven tone, dark spots, fine lines and texture generally require consistent use over time. No specific timeline or guaranteed result is provided on the current official product page.
Only with approval from the professional who performed the treatment. Because the formula contains fragrance and multiple active ingredients, it may not be the first choice immediately after laser, microneedling, a peel or another procedure. Do not apply it to broken skin.
The formula does not list a retinoid, but it contains tranexamic acid and multiple active ingredients for which pregnancy-specific cosmetic data may be limited. Consult your physician or qualified healthcare provider before use.
The care behind your order
A few helpful details, before your next delivery.
Track your order01 · Across Canada
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Speak with our boutique03 · Care you can count on
Request an eligible return within 30 days. Items must be unopened, unused and in their original packaging. Final-sale exclusions apply.
Returns & order support
Ten forms and derivatives of hyaluronic acid that help hydrate, soften and visibly plump the skin.
Forms the fermented base of the serum and supports conditioning, brightness and antioxidant care.
Helps improve the appearance of firmness and wrinkles.
Supports the visible softening of expression-related lines.
Curious about your ingredients?
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Expert guidance. A considered routine.
Beautiful formulas are only part of the story. Knowing what belongs in your routine makes all the difference.
Talk through your skin, the products you already use and the questions on your mind with one of our facialists.
Book a consultation Just a product question? Ask us.The care behind your care
From your first question to your next replenishment, there’s a real person here to help.
You don’t need to start over. Bring us your current routine and we’ll help you understand where a new formula fits.
Ask our teamTake our skin questionnaire for a thoughtful starting point, then speak with us if you’d like to explore your recommendations.
Find your starting pointA question about how to use it? Unsure about your next step? You’re welcome to come back to our team for guidance.
We’re here to helpFrom our Edmonton boutique
Discover Le Mieux Rx Complex 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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The guidance you’ll want when you get home: how to use it, what to expect and when to check in. Your reminder, with your team still in reach.
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