Good Molecules 5% Niacinamide Serum with Ectoin for dry sensitive skin
Niacinamide
Ectoin
GlycerinAverage
- HighDry Skin Fit
- AverageEffectiveness
- HighSafety
Works for dry sensitive skin; other serums fit it better.
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
- Offers moderate skin tone evening and barrier resilience for your dry and sensitive skin, as niacinamide and ectoin provide humectant and barrier repair actions.
- Glycerin and niacinamide in moderate concentrations offer general skincare benefits like hydration, addressing your dry or flaky skin concerns.
- The formulation is safe for your dry and sensitive skin, with no risks of irritation due to the absence of prohibited or harsh ingredients.
How to apply
- Use this PM routine for your evening skincare. Start using the serum 3 times a week and increase to daily use if your skin feels comfortable.
- Apply the serum after cleansing and toner, but right before your moisturizer. This step locks in deep hydration for dry skin.
- Gently press 2-3 drops of the serum into your skin using your palms. Let it absorb completely for a minute ⏱ before applying your next product.
- Since your skin is sensitive, apply the serum on completely dry skin for better tolerance and less irritation.
- Avoid the sensitive eye area during application. Always do a patch test before your first use to ensure your skin reacts well.
People Say
★4.7Overall rating based on 100+ reviewsBased on limited data, this serum is highly regarded as a gentle and hydrating option, particularly suitable for sensitive or reactive skin. Users frequently report improvements in skin texture, a reduction in redness, and minimized pores. The inclusion of Ectoin is noted for providing a plump and hydrated feel without the irritation sometimes associated with higher concentrations of niacinamide.
Highlights
Lightweight texture Mostly Mentioned
- “absorbs quickly”
- “super lightweight”
- “glides on like butter”
- “no greasy residue”
Gentle & non-irritating Often Mentioned
- “no stinging at all”
- “perfect for sensitive skin”
- “didn't cause redness like the 10% version”
- “calmed my reactive skin”
Hydrating & plumping Often Mentioned
- “skin feels plump”
- “adds an extra layer of hydration”
- “leaves skin baby soft”
- “hydrating without being heavy”
Improves texture & pores Sometimes Noted
- “pores look smaller”
- “smoother skin texture”
- “helped with oil control”
- “reduced forehead lines”
Slight stickiness Sometimes Noted
- “can be a little sticky”
- “barely tacky finish”
- “needs time to dry”
- “feels sticky if you use too much”
Breakouts Rarely Noted
- “broke me out”
- “caused small bumps”
- “clogged my pores”
- “worsened my acne”
Immediate irritation Rarely Noted
- “made my skin red and hot”
- “immediate burning sensation”
- “caused irritation”
- “skin turned red instantly”
Slow results Rarely Noted
- “didn't see much difference yet”
- “dark spots haven't faded”
- “takes time to work”
- “no overnight miracle”
Sources: lovi.care, ulta.com, beautylish.com, skinsort.com, youtube.com, and more
Questions and answers
How well does Good Molecules 5% Niacinamide Serum with Ectoin work for dry sensitive skin?
This serum works reasonably well for your dry sensitive skin, offering moderate evening of skin tone and barrier support without causing irritation. To fit this skin type even better, a treatment needs richly hydrating and nourishing components like ceramides and multiple forms of vitamin C to lock in moisture and protect against environmental stressors.
Which ingredients make this serum a good fit for dry sensitive skin?
Niacinamide, ectoin, and glycerin make this serum a good fit by providing gentle hydration and barrier support for dry and sensitive skin. To fit this skin even better, a product needs maximum beneficial and nourishing ingredients, such as ceramides and multiple forms of vitamin C, to ensure optimal moisture retention and protection against environmental stressors.
What does Niacinamide do for dry sensitive skin?
Niacinamide helps dry sensitive skin by calming irritation and keeping moisture locked in so your face feels soft and smooth. It works to build up your skin barrier and calm redness while being very gentle and unlikely to cause irritation.
Journal of Cosmetic Dermatology, 2004International Journal of Pharmaceutics, 2013
What does Ectoin do for dry sensitive skin?
Ectoin helps dry sensitive skin by acting as a protective shield that keeps moisture locked in and calms irritation. It may also protect your skin from daily damage and redness, leaving your face feeling smooth and comfortable.
Arhiv Za Higijenu Rada I Toksikologiju, 2016Journal of Materials Chemistry. B, 2024
Where does this serum go in a skincare routine for dry sensitive skin?
This treatment serum goes in your evening routine after cleansing and toning, followed by your moisturizer. Putting it in the evening keeps things simple and helps avoid extra safety concerns 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 help hydrate dry skin, followed by your retinol. This product is safe and is unlikely to cause irritation, but this skin type needs richer barrier-repairing creams and soothing hydrators for the best fit.
How often should I use this serum?
You can use this treatment in the evening as part of your routine. A product of this type for dry sensitive skin needs ingredients like glycerin and ectoin to add moisture and help calm flakiness.
Can this serum clog pores, cause breakouts or purging for dry sensitive skin?
This serum is unlikely to clog pores or cause breakouts for your dry sensitive skin, as it has a low risk of breakouts and is safe with no harsh ingredients. A product for this skin type typically needs gentle, deeply hydrating ingredients like hyaluronic acid, ceramides, or plant oils to keep pores clear and skin smooth.
Is this serum fragrance-free and alcohol-free?
Yes, it has no fragrance and no drying alcohol.
What the research says
Niacinamide significantly decreased hyperpigmentation and increased skin lightness compared with vehicle alone after 4 weeks of use in women by inhibiting melanosome transfer.
The British Journal of Dermatology, 2002A 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, 2017Topical 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, 2021Topical 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, 2008Topical 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, 2005Combining ectoine and mannitol with UV filters significantly improved protection of squalene oxidation, catalase activity, and trans-UCA compared to UV filters alone in 10 subjects on irradiated areas.
Journal of Cosmetic Dermatology, 2024Topical 7% ectoine during serial 1064-nm Nd:YAG laser therapy produced a greater reduction in skin erythema, improved stratum corneum hydration, reduced transepidermal water loss, and decreased low-echogenic pixels in thirty participants compared to a vehicle control.
Biomedicines, 2026Regular application of a novel anti-ageing cream containing hyaluronic acid, ectoin, and botanical actives significantly reduced wrinkle depth and length in the periorbital area while demonstrating very good skin tolerance.
Polymers, 2023The emollient V0034CR significantly reduced TEWL compared to vehicle and vehicle plus glycerol, and significantly increased corneometry scores compared to vehicle and vehicle plus petrolatum in healthy volunteers with dry skin, demonstrating combined barrier function improvement from petrolatum and hydration improvement from glycerol.
Journal of Cosmetic Dermatology, 2020Ten days of treatment with a cream containing 20% glycerin significantly increased skin hydration measured by corneometer values in 17 healthy volunteers compared to a placebo cream, but showed no influence on transepidermal water loss or skin sensitivity to an irritating surfactant.
International Journal of Cosmetic Science, 2001Niacinamide/glycerin body moisturizers provided better rapid and prolonged improvement of cosmetic xerosis through functional improvement of stratum corneum barrier function compared to no treatment and conventional moisturizers in female subjects.
Journal of Drugs in Dermatology, 2012
Ingredients
Water, Niacinamide, Glycerin, Propanediol, Ectoin, 1,2-Hexanediol, Caprylyl Glycol, Xanthan Gum, Ethylhexylglycerin
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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Co-founder, Medical Director
Cosmetic chemist, cosmetologist, aesthetic products developer
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Co-founder, CEO and CTO
PhD in computer science, 3x US patent holder, ex-Google, ex-Yandex
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Dr. Sofía Perea Pérez, MD, MSc
Medical Board
Aesthetic medicine practitioner, MSc in Longevity and Anti-Aging Medicine
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Medical Board
Specialist dermatologist, MBBS, MD, IFAAD
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Medical Board
Cosmetic chemist, SCS, IFSCC member
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Medical Board, Medical Advisor
Dermatology MD
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Elina Nazarenko, MD
Medical Board
Dermatology and diagnostic consultant
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Victoria Derkova, MS
Medical Board
Cosmetic chemist, cosmetic development technologist
How does it fit your skin?
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