Cosmedix Elite Serum 24 Rapid Renewal Complex 30ml
Description
Description
Concentrated retinol serum with 24% LG-Retinex from the Elite line
For those who have followed the standard retinol route and seek the most concentrated, clinically supported effect available without a dermatological prescription, the Cosmedix Elite line offers one special product: Serum 24. It is repeatedly described by users and skin therapists as "youth in a bottle" — the most powerful cosmetic retinol formula in the Cosmedix range, with clinical data that speaks for itself. After just eight weeks of consistent use, 91% of participants in a Cosmedix study reported visibly fewer fine lines and wrinkles.
Cosmedix Elite Serum 24 contains 24% LG-Retinex — a proprietary, patented encapsulation of 1% retinol and 1% retinal. It approaches the comparable effect of pharmaceutical Retin-A 0.5%, while the micro-encapsulation drastically reduces the typical side effects of classic high-concentration retinol (dryness, flaking, irritation). A serum originally developed for dry and sensitive skin that cannot tolerate classic retinol — making it uniquely positioned: more effect, fewer side effects. Clinically tested on medium to deep wrinkles and crow’s feet.
Benefits
- Reduces the visibility of medium to deep wrinkles and crow’s feet
- Evens skin tone and fades age spots
- Refines skin texture thanks to gradual cell renewal
- Hydrates despite the high retinol concentration
- Suitable for dry and sensitive skin that cannot tolerate classic retinol
- Gluten-free — also for Dermatitis Herpetiformis
Active ingredients
24% LG-Retinex (1% Retinol + 1% Retinal): The core of the serum and the most concentrated retinoid complex in the Cosmedix range. LG-Retinex is a proprietary technology where pure retinol and retinaldehyde are micro-encapsulated together in a lipid matrix. Three benefits: higher retinoid stability, targeted penetration into the skin’s target layer, and controlled release that reduces the typical irritation of retinol. Retinal is an intermediate step quickly converted into retinoic acid — the active form the skin actually uses for cell renewal.
Sodium Hyaluronate: A form of hyaluronic acid that is efficiently absorbed by the skin. Attracts moisture and holds it deep within — essential in a formula with 24% retinoids, which could otherwise cause temporary dryness.
Squalane: A biomimetic lipid identical to a natural component of skin sebum. Supports the skin barrier during the active effect of retinol and prevents moisture loss. An essential addition in any high-concentration retinol formula.
Vitamin E (D-alpha Tocopherol): The most effective natural form of vitamin E. Protects against UVB damage, supports the stability of retinol in the formula, and enhances the effect of other antioxidants.
Glycosaminoglycans: Natural molecular groups found in the skin that provide hydrating and restorative effects. Help keep the skin supple during the accelerated cell renewal cycle stimulated by retinol.
Sodium Lactate and L-proline: Two natural ingredients that hydrate the skin and support the natural moisture barrier. L-proline is also a building block for collagen — enhancing retinol’s effect on skin firmness.
Safflower Oleosomes: An innovative delivery system based on safflower seeds. Gradually releases active ingredients into the skin, improving tolerance to the high retinol concentration and ensuring longer-lasting effects.
Sunflower seed oil (Helianthus Annuus): A light nourishing oil rich in vitamin E and linoleic acid. Supports the skin barrier and compensates for potential dryness caused by retinol.
Galactoarabinan: A polysaccharide from larch tree with clinically proven hydrating effects. Reduces trans-epidermal water loss (TEWL) and keeps the skin supple during active treatment.
Lactobacillus/Radish Root Ferment Filtrate: A fermented ingredient that supports the natural moisture barrier and contributes to a smoother skin surface.
Sandalwood oil and honeysuckle extract: Two soothing ingredients that calm the skin during the active effect of retinol. Essential in a formula that might otherwise cause irritation due to its concentration.
Sodium Polygamma-Glutamate: A natural moisture attractor derived from soy fermentation. Retains moisture in the skin and boosts the effect of hyaluronic acid.
Witch Hazel water: A natural mild astringent toner base that gently refines pores and enhances the serum's comfort.
How to use
- Use Serum 24 only in the evening — always wear SPF during the day
- Important: Cosmedix recommends using Serum 16 first before switching to Serum 24 — gradual buildup is essential
- Shake the bottle well before each use
- Cleanse and tone the skin according to your regular evening routine
- Start applying once every three nights during the first two to three weeks
- Gradually build up to once every two nights and eventually daily use (only if the skin tolerates it)
- Dispense one pump onto clean, dry skin
- Optionally finish with a hydrating moisturizer for extra comfort
- Always protect the skin the next morning with an SPF — Cosmedix recommends mineral filters (Hydrate+ or Zinc Defense)
Suitable for
- Experienced retinol users already accustomed to retinol through Serum 16
- Mature skin with medium to deep wrinkles and crow’s feet
- Significant sun damage and visible age spots
- Those seeking maximum anti-aging effect without a dermatological prescription
- Dry and sensitive skin that cannot tolerate classic high-concentration retinol
- Not suitable during pregnancy or breastfeeding
Frequently asked questions
What is the difference between Serum 16 and Serum 24?
Two different intensities of the same principle. Serum 16 contains 16% LG-Retinex and is suitable for those new to retinol or seeking moderate anti-aging. Serum 24 contains 24% LG-Retinex (1% retinol + 1% retinal) and is the targeted choice for those wanting to address medium to deep wrinkles. Cosmedix strongly recommends using Serum 16 first — for at least several months — before switching to Serum 24. Starting directly with Serum 24 without prior retinol experience overloads most skin types.
Comparable to pharmaceutical Retin-A?
Serum 24 is described by skin therapists as the most concentrated cosmetic retinol formula available without a prescription — with effects close to Retin-A 0.5%. The important difference: thanks to LG-Retinex micro-encapsulation, Serum 24 has significantly less chance of the typical side effects of Retin-A (intense peeling, redness, burning). The effect is more gradual but cumulatively powerful, as clinical data shows (91% improvement in fine lines after 8 weeks).
Can I use Serum 24 daily?
Not immediately. Cosmedix recommends starting with once every three nights and gradually building up to daily use over a period of six to eight weeks. The skin needs time to get used to the high retinol concentration. If irritation occurs: reduce the frequency. For some users, two to three times per week remains the sweet spot for long-term use.
Can I use Serum 24 during pregnancy or breastfeeding?
No, absolutely not. Retinol at this concentration is explicitly discouraged during both periods due to risks to the child’s development. For anti-aging during pregnancy, alternatives are available such as Cosmedix Bakuchiol Complete (a retinol alternative), a peptide serum like Affirm, or a combination of niacinamide and vitamin C. Always consult your midwife.
When will I see the first results from Serum 24?
The first improvement in skin texture is usually visible after 4 to 6 weeks. The clinical study by Cosmedix shows that after 8 weeks of consistent use, 91% of participants reported fewer fine lines and wrinkles — an exceptionally high percentage. For visible reduction of medium-deep wrinkles and crow’s feet, daily use for 12 weeks is recommended.
Is Serum 24 suitable for dry or sensitive skin?
Especially suitable — that is one of the most remarkable aspects of this product. The LG-Retinex micro-encapsulation makes the high retinol concentration tolerable for skin types that cannot tolerate classic retinol in lower concentrations. The combination with hyaluronic acid, squalane, and glycosaminoglycans actively compensates for the potential drying effect. For very reactive skin, slow buildup remains essential, but Serum 24 is feasible.
Can I combine Serum 24 with other active ingredients?
Not on the same evening with other acids (AHA, BHA, PHA) or strong vitamin C formulas — that overloads the skin with a formula containing 24% LG-Retinex. Classic schedule: Serum 24 in the evening (according to your frequency), vitamin C (BrillianCy or Affirm) in the morning, and SPF. Niacinamide and bakuchiol can be used alongside Serum 24 — both have soothing properties that support the retinol effect.
What is the difference between Serum 24 and X-Cell+?
Both are Cosmedix Elite products with retinol, but for different purposes. X-Cell+ contains only 0.04% retinol (via LG-Retinex) plus brightening ingredients like niacinamide and Palmaria Palmata — suitable as pre-procedure preparation and daily brightening. Serum 24 contains 24% LG-Retinex and is fully focused on anti-aging for medium to deep wrinkles. For pre-procedure routine choose X-Cell+, for maximum anti-aging Serum 24.
How long does a 30ml bottle last?
When used according to the recommended buildup (starting once every three nights, gradually to daily), a bottle usually lasts three to four months. For those who stay at two to three times per week, this comes to five to six months. The pump bottle dispenses precisely (one pump per application) and keeps the serum fresh until the last drop — important with retinol that would otherwise lose effectiveness due to air exposure.
