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Serum 16 Rapid Renewal Serum
Serum PM
Rapid Renewal Serum 16 is Cosmedix's Rapid Renewal Serum, thoughtfully formulated for those who want the proven benefits of Retinol without the irritation that typically comes with it.
- Helps improve the appearance of fine lines and wrinkles
- Deeply hydrates, soothes and nourishes a dry complexion
- Helps reduce the look of an uneven skin ton
- Helps improve hydration and prevent moisture loss
- Lightweight, fast-absorbing formula boosts moisture without causing dryness
Rapid Renewal Serum 16 is Cosmedix's Rapid Renewal Serum, thoughtfully formulated for those who want the proven benefits of Retinol without the irritation that typically comes with it.
As a retinoid-dominated formula that offers an exceptional age-defying effect for people with any skin type, this PM serum adds optimal moisture to the skin, in addition to a clinical Retinoid treatment.
The hero ingredient is 16% LG-Retinex, a proprietary Microencapsulated Retinol Complex exclusive to Cosmedix. This encapsulation technology wraps both Retinol and Retinal in a protective delivery system that releases actives gradually onto the skin, reducing the risk of reactivity while maintaining the efficacy that Retinoids are known for.
Since the actives are gradually released, the skin has time to react and absorb. Naturally, there are no cases of high reactivity from applying Serum 16 so far. The microencapsulated formula works gradually to make the skin free from fine lines within weeks.
The bonus: no peeling, redness, or tightness that standard Retinol products so often cause. Serum 16 also packs in Sodium Hyaluronate, which works alongside the Retinoid complex to replenish moisture at the skin's surface, visibly plumping fine lines and softening the complexion's overall texture.
Paired with Squalane, a skin-identical emollient that mimics the skin's own natural oils, the formula maintains moisture levels throughout the night, leaving skin nourished rather than stripped by morning.
Vitamin E (Tocopherol) rounds out the core active complex, providing antioxidant protection against environmental stressors that accelerate visible aging. Its presence in the formula also supports the skin's tolerance of the Retinoid complex, creating a more balanced experience for those who have previously found Retinol too harsh.
The formula is further enriched with Safflower Oleosomes, Glycosaminoglycans, and Sodium Polygamma-Glutamate. All of them are moisture-binding and skin-conditioning agents that reinforce the skin's natural barrier and help lock in the hydration delivered overnight.
In addition, the Honeysuckle Flower Extract adds a calming, antioxidant-rich botanical note that soothes the skin as the actives work.
Cosmedix combines encapsulated retinol and skin calmers to create a unique matrix. But, instead of skin impairments, continuous gentle anti-aging Retinol use here will make your skin smoother, polished, and fresh.
AM - We do not recommend this product for use in the AM, as it may cause skin sensitivity to sun exposure. Protect your results by wearing sunscreen daily.
PM - Apply a small amount to freshly cleansed and toned skin as tolerated every 1-3 nights, working up to nightly use. May be followed with moisturizer if additional hydration is needed.
Q. What is Serum 16 designed to treat?
A. Serum 16 works on fine lines, uneven skin tone, dry, dehydrated skin, and general signs of early aging, all while keeping skin comfortable and hydrated throughout the night.
Q. What is LG-Retinex?
A. LG-Retinex is Cosmedix's own encapsulated blend of Retinol and Retinal. The encapsulation releases the actives gradually, so skin gets the full benefit of Retinol with far less chance of irritation.
Q. Is Serum 16 suitable for sensitive skin?
A. Yes. It was specifically developed for dry, sensitive skin types that don't get along well with traditional Retinol. The encapsulated delivery system and hydrating base make it much gentler than standard Retinol formulas.
Q. Why is Serum 16 a PM-only product?
A. Retinoids react fast when exposed to sunlight (even when you are wearing an SPF). The PM routine is designed for retinol application, and its long-lasting results become visible within a few weeks.
Q. How often should I use Serum 16?
A. Let an aesthetician analyze your skin and recommend the appropriate retinol dosage. On a broader scale, estheticians prescribe using serum 16 for 2 to 3 times a week.
Q. Can I use a moisturizer on top of Serum 16?
A. Retinoids cast a drying effect on the skin, especially the face. The softer, more supple, and more nimble your skin is, the more it absorbs retinoids and perceives their effects.
Q. How is Serum 16 different from other Retinol serums?
A. Serum 16 uses microcapsulated retinol, which most mass-market retinoids don’t use. When the skin is dry or losing moisture, Serum 16 is a default choice. The encapsulated formula also works well on reactive and oversensitized skins.
Q. When will I start seeing results with Serum 16?
A. Retinol works fast. However, assured and sustainable results may take up to 3 weeks. At first, the skin will look sharper and plumper. Gradually, you will see more details, such as a softer skin tone that is more radiant and supple.
Q. Can Serum 16 be used after professional treatments?
A. In professional treatment, Serum 16 is the first choice. If your skin is going through the recovery stage, aestheticians usually recommend pausing retinol treatment. However, encapsulated retinols can still be absorbed by the skin. It is a gentle mechanism and a more practical option for sensitive skin.
Aqua/Water/Eau, Hamamelis Virginiana (Witch Hazel) Water, Carthamus Tinctorius (Safflower) Oleosomes, Glycerin, Phospholipids, Sodium Acrylates Copolymer, Hydrogenated Polyisobutene, Sodium Lactate, Polysorbate 20, Cetyl Alcohol, Retinal, Retinol, Proline (L), Sodium Hyaluronate (L), Helianthus Annuus (Sunflower) Seed Oil, Tapioca Starch, Leuconostoc/Radish Root Ferment Filtrate, Lonicera Caprifolium (Honeysuckle) Flower Extract, Lonicera Japonica (Honeysuckle) Flower Extract, Santalum Austrocaledonicum (Sandalwood) Wood Oil, Lavandula Hybrida (Lavandin) Oil, Galactoarabinan, Glycosaminoglycans, Sodium Polygamma-Glutamate, Tocopherol (D-Alpha), Squalane, Hydroxypropyl Starch Phosphate, Dimethicone, Polyglyceryl-10 Stearate, Gluconic Acid, Xanthan Gum, Tetrasodium Edta, Citric Acid, Alcohol, Potassium Sorbate, Sodium Glycolate, Sodium Hydroxide, Trisodium Edta, Benzoic Acid, Sodium Benzoate, Linalool, Limonene, Coumarin, Geraniol.
Benefits & Usage
Botanical Hero
Honeysuckle (flower)
Honeysuckle is rich in antioxidants and anti-inflammatory properties, helping to soothe irritation, hydrate the skin, and promote a radiant, healthy complexion.
How to Apply
AM - We do not recommend this product for use in the AM, as it may cause skin sensitivity to sun exposure. Protect your results by wearing sunscreen daily.
PM - Apply a small amount to freshly cleansed and toned skin as tolerated every 1-3 nights, working up to nightly use. May be followed with moisturizer if additional hydration is needed.
Transformative Ingredients
Clean. Clinical. Luxurious
Clinically Proven Efficacy
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COSMEDIX proprietary encapsulated blend of Retinol and Retinal that helps reduce the look of lines and medium to deep wrinkles
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Boost hydration and help prevent moisture loss
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Helps protect the skin from environmental stressors
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Customers praised this retinol-based renewal serum for being exceptionally gentle yet effective. Many reported smoother, brighter skin with reduced fine lines and wrinkles without typical irritation, dryness, or peeling. The hydrating formula absorbs quickly and works well for sensitive skin. Some noted initial adjustment needed and price concerns.
- Zero drama, all glow. Skin so smooth, fine lines blurred. Retinol power without looking like a shedding lizard.
- Delivers visible results without excessive dryness or irritation. Smoother and more radiant complexion.
- Softened fine lines, skin looks brighter and smoother. Light texture absorbs quickly, no sticky feeling.
- 5 stars: 219 (90%)
- 4 stars: 17 (7%)
- 3 stars: 7 (3%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
Works great
Best serum
Amazing product. Love it
Will buy it again
COSMEDIX Serum 16 Rapid Renewal Serum is a standout in my skincare routine. It combines 16% microencapsulated retinol with hydrating ingredients like squalane and sodium hyaluronate, making it effective yet gentle. The serum absorbs quickly, leaving my skin feeling nourished and smooth without any irritation. Over time, I've noticed a more even skin tone and a reduction in fine lines. It's ideal for those seeking age-defying benefits with added hydration.([Crystal Clear Skin Management][1])
[1]: https://crystalclearskin.com.au/products/cosmedix-serum-16?utm_source=chatgpt.com "Cosmedix Serum 16 - Rapid Renewal Serum - Crystal Clear Skin Management"
Okay, Cosmedix Serum 16 is basically Botox's chill, skincare cousin. I started using it cautiously, like “please don't peel my face off,” but wow�zero drama, all glow. It's got a fancy retinol-retinal combo (science!) that works hard while I sleep like a potato. I wake up with skin so smooth, I've caught myself petting my own cheek. It's like my face is getting younger while my back makes new cracking noises. Hydrating? Yes. Irritating? Nope. I use it every night now and feel like a skincare wizard casting anti-aging spells. Fine lines? Blurred. Texture? Soft like a baby seal. Basically, if my skin could write a thank-you note, it would. If you want retinol power without looking like a shedding lizard, Serum 16 is the one. It's the kind of product that makes you yell “I see you, Cosmedix!” in your bathroom mirror.
Retinol is always a tricky ingredient , but serum 16 is a perfectly formulated blend. I normally feel a little bit of irritation after using retinoids ,but this product no adverse reaction at all. I definitely recommend those with oily to combo skin to use this twice a week especially if you are pairing it with the moisturizer It can cause a little bit of access oil build up on the skin thats a little bit more noticeable throughout the day / while wearing makeup. This product was sent to me for review. I won't be buying this for myself in the future but I will be getting this product for my mother it seems like it'll be more beneficial for her aging skin.
Serum 16 has a lightweight, silky texture that feels luxurious upon application. It absorbs quickly into the skin without leaving any sticky or greasy residue, making it easy to layer with other products in my skincare routine.This serum is formulated with a potent blend of ingredients, including a high concentration of retinol, which is known for its ability to stimulate collagen production and accelerate cell turnover. The inclusion of soothing agents helps to minimize irritation, making it suitable for my skin. There has been a significant improvements in my skin's texture, tone, and overall appearance after using Serum 16. It effectively reduces the appearance of fine lines, wrinkles, and uneven skin tone, resulting in a smoother and more radiant complexion, it delivers visible results without excessive dryness or irritation, which can sometimes occur with other retinol products.Serum 16 is an excellent addition to my anti-aging skincare routine, gentle on the skin, allowing for regular use without discomfort.
Cosmedix Serum 16 is an intensive retinol serum designed to rejuvenate the skin while minimizing the irritation often associated with retinoids. It's formulated with a blend of retinol and L-lactic acid, aiming to improve skin texture, reduce the appearance of fine lines and wrinkles, and promote a clearer complexion. Here's an evaluation of its effectiveness and suitability.
Serum 16 has completely changed how I feel about using retinol. I've struggled in the past with irritation and dryness from other retinol products, but this formula somehow delivers real results without any of the harsh side effects. It's incredibly gentle! No redness, no flaking!
The texture is lightweight and absorbs quickly, which I really appreciate. It leaves my skin feeling calm and moisturized. I've been using it regularly, and over time I've noticed a more even skin tone and a softening of fine lines, especially around my eyes and mouth.
If you've had trouble finding a retinol that plays well with sensitive skin, this one is absolutely worth trying. It's become a permanent fixture in my skincare routine. Product was received in exchange for my honest review.
Let's talk about Serum 16 by COSMEDIX - a product that completely shifted my view on retinol. I've been using it for several weeks now, and it's become a staple in my evening routine.
This isn't your average harsh retinol - it's powered by LG-Retinex, a gentle, encapsulated retinol complex that combines retinol with retinaldehyde for visible results without the irritation. My sensitive skin usually freaks out with retinoids, but this one? Total skin harmony. I'm so impressed!
It also contains hydrating peptides and vitamin E, which help calm and nourish the skin while the retinoids work their magic. I wake up to smoother texture, refined pores, and that soft, fresh-faced glow that feels like eight hours of perfect sleep. No dryness, no flaking, no redness. Just beautifully balanced renewal.
I genuinely didn't know retinol could feel this luxurious and supportive for sensitive skin. COSMEDIX nailed it.
Highly, highly recommend!
Now I just want to try everything from COSMEDIX!
COSMEDIX serum 16
Love this serum . when i started using it my face reacted in a non happy way i noticed red spots and also a thingly sensation i thougth that may be was a strong serum after a couple of minutes i forgot the disconfort so, the next time i had used again felt better. I noticed in about two weeks that my face feel tighter and a couple of my wrinkles were not as deep. The cosmedix brand recommend to use 1-3 nigths as tolerated following with moisturizer and the next day wear sunscreen . As a beauty enthusiast im always eager to try new products im so glad to have the opportunity and try cosmedix a brand that i definitely will keep using .
This product was provided for promotional purposes in exchange for my honest review
I wasn't sure what to expect from SERUM 16, but it honestly exceeded my expectations. This retinol-based serum feels rich and soothing on the skin, yet works effectively overnight. I use it in the evenings, and by morning, my skin feels noticeably smoother and more refined. After consistent use, I've seen visible improvements in fine lines, texture, and overall radiance. What sets it apart is how gentle it is � no irritation, no dryness, just results. The formula absorbs well and layers nicely with other products in my routine. A great option for sensitive skin or first-time retinol users.
This product was gifted in exchange for my honest review.
I'm one of those people who's never really had much luck with traditional retinol, so I've always felt like I was missing out. That's why I'm so happy to have found this product! It has a special Microencapsulated Retinol Complex that's gentler on my skin, which is a huge plus. I only apply it at night, and over time, I've noticed my skin looking clearer and more even. I really love that it also includes nourishing ingredients like vitamin E, squalane, and sodium hyaluronate to help improve my skin's overall health. The best part is, it hasn't caused any irritation, redness, or dryness for me. The pump dispenser is super convenient and keeps the product hygienic. I start with the Cosmedix cleanser, followed by this serum, and I've been really happy with the results!
I was gifted this product in exchange for my honest review. I have been using this rapid renewal serum for 2 weeks now and i couldn't be more pleased. You start by cleansing and toning your skin before adding a small amount to your face. This should be done every 1 to 3 nights to work up to bwing able to use nightly. This is followed by moisturizer and sunscreen. This serum is a thicker solid textured serum. The fruity smell is a delightful fragrence. This serum contains LG- retinex for those who can't handle retinol. So this serum is retinol infused to improve skin without the redness and drying out. This serum will help improve uneven skin texture and smooth fine lines and wrinkles. I was able to easily use it nightly and my fine lines have become lighter. I reccomend this product. The higher price is well worth every penny.
This was my introduction to the COSMEDIX beauty line, and I was fortunate to experience the full complement of products: cleanser, the Affirm antioxidant firming serum, the emulsion intense hydrator, and Serum 16.
After each birthday, I am determined to look for ways of enhancing my skin regimen to look the best I can as I mature. I have been afraid to try retinol products they would be to harsh on my skin but I was pleasantly surprised how gentle the Serum 16 was on my skin. No adverse reaction after use.
I used all four products for approximately three weeks and still have a lot of products remaining. I believe after consistent use I will see benefits from the COMEDIX beauty line.
*This product was provided for promotional purposes in exchange for my honest review*
I've been using the serum every three days to adjust my skin. The benefits of this serum can be seen in a short time, and I love it. It's very light with no unpleasant smell, it hasn't sensitized my skin, nor has it irritated my eyes. What I love most is its incredible technology.
This serum has helped improve the firmness of my skin because I have mature, sagging skin, and it has softened fine lines thanks to its main ingredient, but with a less aggressive effect. My face looks brighter and smoother.
It's ideal for skin that wants to regain its youth, improve wrinkles, and mature skin, including those with sensitivity, dehydration, or very marked signs of aging. Its texture is light and absorbs quickly without leaving any sticky feeling on the skin.
Cosmedix Serum 16 Rapid Renewal Serum has been a standout in my skincare routine. Its gentle yet effective formula, featuring 16% LG-Retinex�a blend of retinol and retinal�delivers noticeable improvements in skin texture and tone without the typical irritation associated with retinoids. After consistent use, my skin feels smoother, more hydrated, and has a subtle glow. It's become a reliable product that complements my skincare regimen well
This is a different version of serum than any other serums. If you have dry or sensitive skin and allergic to traditional Retinol serums, this Serum 16 from Cosmedix is a perfect solution for you. I have normal to dry skin, entering in my 40s soon. I used this serum 16 for 2 weeks. This gives me perfect hydration and help address my signs of aging. After using this, my skin looks smoother, fresh, hydrated and plumped. My fine lines and wrinkles are visibly less. It also helps reduces the uneven tone on the skin. For dry skin, it really helps prevent moisture loss. I only use it at PM and it is advisable to use it only on PM time. The formula is super lightweight, lathers on the skin smooothly, absorbs quickly and boosts the hydration through out the time. I use it as 3rd step from cleansing my face as a skincare routine. It is formulated with Honeysuckle, 16% LG-Retinex, a mixture of Retinol and Retinal. Also this improves the skin without causing redness and dryness. A perfect rapid renewal serum for all skin types even sensitive skin too. I would definitely buy this again and highly recommend to everyone. Thank you!
*This product was collected in exchange for my honest review.
My biggest takeaway from using this product? Knowledge is wealth. I was super reluctant to try this serum because I thought people with my complexion (dark skin) couldn't tolerate retinol, but I've learned to stop listening to random TikTok advice. Serum 16 is a game-changer. With 16% LG-Retinex (a microencapsulated Retinol + Retinal complex), it's gentle, hydrating, and perfect for my dry, sensitive-prone skin. After one use, I had a little shedding, but I followed the recommended routine and was amazed by how my skin held moisture and glowed. I didn't use it nightly, but each time I did, my skin looked smoother and more balanced. It applies like a moisturizer, never sticky or harsh. A perfect addition for my summer glow!
*This product was provided for promotional purposes in exchange for my honest review*
As a beauty enthusiast, I was so excited to try the serum 16 by Cosmedix in my new skincare routine set. It is a nighttime only serum which meant I needed to finally set up a routine. Using this serum, I loved how it felt going on clean skin. It absorbed into my skin well and did not leave it feeling sticky or with a lingering scent. I woke up looking and feeling refreshed in the morning. I have been able to incorporate this serum into my routine nightly since starting it. That has been huge for me; which means it's getting the chance to work. I am seeing some nice changes in my all over skin. It appears more healthy and balanced. As well as the appearance of better moisture retention. I can't wait to see the continued skin improvements while using Cosmedix serum 16 over time! This product was provided for promotional purposes in exchange for my honest review
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