Retiniacin Night Renewing Treatment Serum
The Isomers Skincare Laboratories Retiniacin Night Renewing Treatment Serum is a serums, essence, ampoule. Our analysis of its 17 ingredients (10 low-risk) rates it Excellent (88/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.
The Isomers Skincare Laboratories Retiniacin Night Renewing Treatment Serum is a serums, essence, ampoule. Our analysis of its 17 ingredients (10 low-risk) rates it Excellent (88/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
Dry Skin
3/2
Oily/Acne-Prone Skin
1/0
Sensitive Skin
3/5
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
1
|
|
Water
(Solvent) |
|
|
|
Carthamus Tinctorius Oleosomes
(Emulsion Stabilising, Skin Conditioning, Skin Conditioning Emollient) |
|
|
1
|
A
|
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
|
|
1
|
A
|
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent) |
|
|
|
|
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning) |
|
9
|
A
|
Retinol
(Skin Conditioning) |
Bad for Sensitive Skin
|
|
9
|
|
Retinyl Acetate
(Skin Conditioning) |
|
|
|
|
Retinyl Palmitate
(Skin Conditioning, Skin Conditioning Miscellaneous) |
|
|
1
|
|
Melothria Heterophylla Root Extract
(Skin Conditioning) |
|
|
|
|
sh-Oligopeptide-1
(Skin Conditioning) |
|
|
1
|
|
Hydroxyacetophenone
(Antioxidant) |
|
|
3
|
B
|
Propylene Glycol
(Fragrance, Humectant, Skin Conditioningagent Miscellaneous, Solvent, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling) |
Good for Dry Skin
|
|
2
|
A
|
Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent) |
Good for Dry Skin
Fungal Acne Trigger
|
|
1
|
A
|
1,2-Hexanediol
(Solvent) |
|
|
1
|
A
|
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling) |
|
|
|
|
SANTALUM ALBUM OIL
(Fragrance) |
|
|
1
|
A
|
Sodium Ascorbate
(Antioxidant) |
No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.
EWG flags hazard, not real-world risk — ratings don't account for how much of an ingredient a product contains. Treat these as things to research, not verdicts. How we score →
How to use
General guidance from this product's category and active ingredients — always follow the directions on the package.
Trust & honesty
Contains ingredients some choose to avoid or double-check while pregnant or nursing.
Topical retinoids (retinol, retinaldehyde, retinyl esters) are widely advised against in pregnancy as a precaution. The strongest evidence is for ORAL retinoids; topical absorption is low, but most clinicians err on the side of caution.
This is general information, not medical advice. Pregnancy guidance varies and depends on concentration and your individual situation — always check with your doctor, midwife or pharmacist. How we flag this.
The concentrations these actives are typically effective at in research — not a measurement of this product.
Most studied between 0.1% and 1%. Higher is not automatically better — irritation climbs with dose, so a well-formulated lower strength is often the sweet spot.
Retinol, Retinyl Acetate, Retinyl Palmitate
L-ascorbic acid is usually used at 5–20% (around 10–15% is common). Above ~20% adds little and tends to irritate more; it also needs a low pH to work.
Sodium Ascorbate
Most research uses 2–5%; some formulas go to 10%. Very high levels can cause flushing in sensitive skin.
Niacinamide
INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.
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