🇸🇦Saudi Arabia

COSRX The 6 Peptide Skin Booster Serum for dry sensitive skin

Superior

  • HighDry Skin Fit
  • HighEffectiveness
  • ExcellentSafety

One of the best moisturizers for dry sensitive skin.

This fit is calculated for the concerns frequently associated with dry sensitive skin: flakiness, tightness, redness, fine lines, and wrinkles. For scores and recommendations based on your full skin profile, including your 12D face scan results and any goals or preferences you have, please use the Lovi app.

Page built Nov 8, 2026How the Fit score works

Lovi Assistant explains

  • Excellent for your dry and sensitive skin, this serum provides superior hydration and barrier support with glycerin, sodium hyaluronate, and betaine, which effectively attract and retain moisture to combat dryness and flakiness.
  • The inclusion of acetyl hexapeptide-8 and copper tripeptide-1 offers significant anti-aging benefits by promoting skin plumping and minimizing fine lines, further enhancing your skin's youthful appearance.
  • This formula is safe for your skin, as it contains soothing ingredients like niacinamide and tocopherol and avoids harsh or irritating components.

How to apply

  • Could be used as part of your AM or PM routine. Start using this moisturizer 3 times a week and move to daily use if your dry skin tolerates it well.
  • Apply this moisturizer after cleansing and toner in the morning, or after your serum in the evening. Always pair it with SPF in the morning.
  • Gently press a small amount of the moisturizer into your skin. Avoid rubbing it harshly to protect your sensitive skin.
  • Apply the moisturizer on slightly damp skin to help with hydration absorption. This also works well for dry and flaky skin types.
  • Do a patch test before your first use. Avoid the eye area to prevent any irritation.

People Say

★4.7Overall rating based on 5.4k+ reviews

Based on a very large amount of data, users consistently praise this serum as a lightweight, water-like "booster" that significantly improves skin texture and hydration without heaviness. It is widely celebrated for smoothing pores and creating a "glass skin" glow. A small minority of users with specific sensitivities experienced breakouts or closed comedones.

Highlights

  • Lightweight & fast-absorbing Mostly Mentioned
    • “absorbs instantly like water”
    • “non-sticky finish”
    • “perfect for layering”
    • “feels weightless on oily skin”
  • Hydrating & plumping Often Mentioned
    • “gives a healthy glow”
    • “skin feels plump”
    • “boosts hydration levels”
    • “glass skin effect”
  • Improves skin texture Often Mentioned
    • “skin feels softer immediately”
    • “smoothed out my texture”
    • “pores look smaller”
    • “reduced roughness”
  • Gentle & non-irritating Sometimes Noted
    • “no stinging on sensitive skin”
    • “soothing application”
    • “great for barrier repair”
    • “gentle enough for daily use”
  • Caused breakouts Rarely Noted
    • “gave me closed comedones”
    • “caused tiny whiteheads”
    • “broke me out after a week”
    • “bad reaction for acne-prone skin”
  • Ingredient sensitivities Rarely Noted
    • “reacted to the niacinamide”
    • “contains soy oil (allergy warning)”
    • “caused redness/flushing”
  • No visible results Rarely Noted
    • “did absolutely nothing”
    • “just expensive water”
    • “no change in fine lines”
    • “saw no difference after a bottle”
  • Sticky residue Rarely Noted
    • “felt slightly tacky”
    • “left a sticky film”
    • “clashed with other products”
    • “too slimy”

Sources: lovi.care, ulta.com, sokoglam.com, yesstyle.com, oliveyoung.com, amazon.com, and more

Questions and answers

What makes COSRX The 6 Peptide Skin Booster Serum one of the best fits for dry sensitive skin?

This serum is a great fit because it helps quench dry and flaky skin with hydrating ingredients like sodium hyaluronate and glycerin, while soothing your skin with niacinamide and allantoin. It also features peptides that help smooth fine lines and keep your skin looking plump and soft.

Clinical, Cosmetic and Investigational Dermatology, 2017American Journal of Clinical Dermatology, 2013

Which ingredients make this serum a good fit for dry sensitive skin?

This serum is a great fit for your dry sensitive skin because it contains glycerin, sodium hyaluronate, and betaine, which draw in and hold onto moisture to stop dryness and flakiness. It also features soothing ingredients like niacinamide and allantoin, along with peptides that help smooth fine lines without causing irritation.

Clinical, Cosmetic and Investigational Dermatology, 2017American Journal of Clinical Dermatology, 2013

What does Hyaluronic Acid do for dry sensitive skin?

Hyaluronic acid is a great fit for dry, sensitive skin because it brings a large boost in hydration, making the skin feel soft and smooth while improving barrier function. It helps calm tightness and dryness, and is unlikely to cause irritation.

Journal of Drugs in Dermatology, 2011Dermatology and Therapy, 2021

What do Peptides do for dry sensitive skin?

Peptides help hydrate dry sensitive skin while smoothing the look of fine lines and keeping the surface calm. They may also improve skin elasticity, though some types need enhanced delivery systems to deeply penetrate the skin barrier.

Advanced Science, 2025International Journal of Molecular Sciences, 2025

Where does this serum go in a skincare routine for dry sensitive skin?

This serum goes in the evening routine after your toner and before your moisturizer. Putting it in the evening keeps things simple and gives you extra safety around sun exposure.

Can I use this serum with retinol, and in what order?

You can use this serum with retinol by applying the serum first to keep your skin hydrated and calm, followed by retinol once it absorbs. This routine helps reduce dryness and irritation while supporting your skin barrier.

Cutis, 2006Clinical, Cosmetic and Investigational Dermatology, 2017

How often should I use this serum?

You can use this treatment in your evening routine, applying it after your toner and before your moisturizer. Daily use helps keep your skin hydrated and smooth while minimizing dryness and fine lines.

Journal of Cosmetic Dermatology, 2020Health Science Reports, 2021

Can this serum clog pores, cause breakouts or purging for dry sensitive skin?

This serum is unlikely to clog pores or cause breakouts on dry sensitive skin, as it avoids harsh components and contains soothing ingredients like niacinamide. Reviewers rarely report breakouts from this formula, making it a safe choice for maintaining clear skin.

Can I use this serum around the eyes or on my body?

Yes, you can use this hydrating serum around the eyes and on your body to help smooth and soften dry skin. Its gentle formula and nourishing ingredients like sodium hyaluronate and glycerin absorb easily, making it well-suited for delicate areas without causing irritation.

Clinical, Cosmetic and Investigational Dermatology, 2017

Is this serum fragrance-free and alcohol-free?

Yes, it has no fragrance and no drying alcohol.

What the research says

  • A single application of a moisturizing fluid containing hyaluronic acid 1%, glycerin 5%, and Centella asiatica stem cells extract significantly increased skin hydration by 29% and reduced transepidermal water loss at 24 hours compared to baseline and an untreated control site in twenty healthy women.

    Clinical, Cosmetic and Investigational Dermatology, 2017
  • Argireline treatment twice daily for 4 weeks produced a significant anti-wrinkle effect with 48.9% total efficacy and decreased skin roughness in Chinese subjects compared with 0% efficacy and no decrease in roughness in the placebo group.

    American Journal of Clinical Dermatology, 2013
  • Treatment with cross-linked hyaluronic acid-based microneedle patches combined with acetyl hexapeptide-8 or epidermal growth factor significantly improved wrinkles and skin hydration compared to the patch alone in Korean females over 29 days.

    Annals of Dermatology, 2019
  • Acetyl hexapeptide-3 and tripeptide-10 citrulline demonstrated antiwrinkle efficacy and decreased transepidermal water loss in twenty-four healthy volunteers compared to control groups, though synergistic effects between the two peptides remained unclear.

    Journal of Cosmetic Dermatology, 2017
  • Topical application of 0.1% hyaluronic acid formulations of different molecular weights led to significant improvements in skin hydration and elasticity, with low-molecular-weight formulations also significantly reducing wrinkle depth in seventy-six female subjects compared to a vehicle control.

    Journal of Drugs in Dermatology, 2011
  • Topical application of hyaluronic acid in conjunction with free gingival graft significantly reduced donor site postoperative pain until day 7 compared to normal saline, with no significant differences in graft dimensions or patient satisfaction.

    Clinical Oral Investigations, 2022
  • Treatment with a hyaluronic acid-containing mouth rinse or topical gel led to significant lesion reduction, pain relief, and normalization of lesion color in adult patients with minor recurrent aphthous stomatitis, with the gel formulation showing an earlier healing onset at 3 days.

    BMC Oral Health, 2019
  • Topical 2% N-acetyl glucosamine reduced facial hyperpigmentation in an 8-week split-face clinical test, with an even greater effect observed when combined with 4% niacinamide.

    Journal of Cosmetic Dermatology, 2007
  • N-acetyl-glucosamine-loaded nanostructured lipid carriers successfully delivered the hydrophilic agent through the skin and reduced melanin distribution in healthy volunteers.

    Advanced Pharmaceutical Bulletin, 2016
  • Topical cosmetic products containing hyaluronic acid, N-acetyl glucosamine, and gamma-amino butyric acid improved skin hydration by 24.28% to 33.60%, elasticity by 11.98%, and skin lightening by 5.26% over 2 months in 20 female participants.

    Journal of Cosmetic and Laser Therapy, 2019
  • Topical post-laser application of human adipocyte-derived mesenchymal stem cell media combined with niacinamide significantly improved wrinkle index, melanin index, patient satisfaction, and investigator esthetic improvement scores compared to vehicle cream in patients with aging skin.

    Journal of Cosmetic Dermatology, 2021
  • Topical nicotinamide prevented solar-simulated UV-induced immunosuppression in healthy volunteers, and men experienced immunosuppression at solar-simulated UV doses three times lower than those required for women.

    The Journal of Investigative Dermatology, 2008
  • Topical 5% niacinamide applied twice daily for 12 weeks reduced fine lines and wrinkles, hyperpigmented spots, red blotchiness, and skin sallowness, and improved skin elasticity compared to vehicle control in 50 female white subjects with facial photoaging.

    Dermatologic Surgery, 2005
  • Topical gel containing chitosan, 0.2% chlorhexidine, allantoin and dexpanthenol did not improve postoperative comfort regarding swelling and pain, but improved the wound's aesthetic appearance following impacted lower third molar extraction compared to no gel.

    Medicina Oral, Patologia Oral Y Cirugia Bucal, 2016
  • A topical gel containing chitosan, chlorhexidine, allantoin, and dexpanthenol significantly reduced postoperative pain, trismus, swelling, and analgesic consumption, while improving wound healing after third molar surgery compared to a placebo.

    Medicina Oral, Patologia Oral Y Cirugia Bucal, 2020
  • An overnight patch containing Allium cepa extract and allantoin safely promotes scar healing after dermatologic surgery, resulting in significantly greater reductions in observer- and patient-assessed POSAS scores compared to no treatment.

    Aesthetic Plastic Surgery, 2018

Ingredients

Water, Dipropylene Glycol, Glycerin, Pentylene Glycol, 1,2-Hexanediol, Niacinamide, Ammonium Acryloyldimethyltaurate Vp Copolymer, Polyacrylate Crosspolymer-6, Butylene Glycol, Xanthan Gum, Ethylhexylglycerin, Adenosine, Polyquaternium-51, Disodium Edta, Citric Acid, Caprylyl Glycol, Betaine, T-Butyl Alcohol, Sodium Pca, Sodium Lactate, Acetyl Hexapeptide-8, Copper Tripeptide-1, Pca, Sh-Polypeptide-121, Serine, Alanine, Allantoin, Sodium Hyaluronate, Acetyl Glucosamine, Glycine, Glutamic Acid, Lysine Hcl, Threonine, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Arginine, Tocopherol, Oligopeptide-68, Proline, Dextran, Palmitoyl Tripeptide-8, Glycine Soja Oil Soybean Oil, Hydrogenated Lecithin, Potassium Sorbate, Sodium Oleate

Behind this fit score

Lovi calculates every fit score from the full ingredient list with brand-independent rules our dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update.

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Prices checked 6 Nov 2026

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