Hokkaido PDRN Lotion
The Idio Hokkaido PDRN Lotion is a toner. Our analysis of its 51 ingredients (34 low-risk) rates it Excellent (96/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.
The Idio Hokkaido PDRN Lotion is a toner. Our analysis of its 51 ingredients (34 low-risk) rates it Excellent (96/100). 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
12/8
Oily/Acne-Prone Skin
4/0
Sensitive Skin
11/13
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
1
|
|
Water
(Solvent) |
|
|
1
|
A
|
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, 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
|
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
|
|
1
|
A
|
Azelaic Acid
(Fragrance, Ph Adjuster, Buffering Agent, Masking) |
|
|
1
|
|
Glutathione
(Fragrance, Reducing) |
|
9
|
A
|
Retinol
(Skin Conditioning) |
Bad for Sensitive Skin
|
|
|
Retinyl Palmitate
(Skin Conditioning, Skin Conditioning Miscellaneous) |
|
|
1
|
|
Sodium DNA
(Skin Conditioning) |
|
|
1
|
|
Astaxanthin
(Cosmetic Colorant, Skin Conditioning) |
|
|
|
|
Hydrolyzed Salmon Ovary Membrane Extract
(Skin Conditioning) |
|
|
|
|
Soluble Proteoglycan
(Hair Conditioning, Skin Conditioning) |
|
|
|
|
Nicotinamide Mononucleotide
(Antioxidant) |
|
|
|
|
Oryza Sativa Lipids
(Skin Conditioning) |
|
|
|
|
Ceramide NG
(Skin Conditioning) |
|
|
1
|
|
Ceramide NP
(Hair Conditioning, Skin Conditioning) |
|
|
|
|
Ceramide AP
(Hair Conditioning, Skin Conditioning) |
|
|
1
|
|
Ascorbyl Glucoside
(Antioxidant) |
|
|
|
|
Bis-Glyceryl Ascorbate
(Antioxidant, Humectant) |
|
|
1
|
|
Ascorbyl Tetraisopalmitate
(Antioxidant, Skin Conditioning, Emollient) |
|
|
|
|
3-O-ETHYL ASCORBIC ACID
(Skin Conditioning) |
|
|
1
|
|
Panthenyl Ethyl Ether
(Antistatic Agent, Hair Conditioning) |
|
|
1
|
A
|
Sodium Hyaluronate
(Skin Conditioning, Humectant) |
Good for Dry Skin
|
|
1
|
|
Scutellaria Baicalensis Root Extract
(Astringent, Humectant, Soothing) |
|
|
1
|
B
|
Camellia Sinensis Leaf Extract
(Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Oral Care Agent, Skin Conditioning, Skin Protecting, Tonic, Uv Absorber) |
Good for Oily Skin
|
|
|
|
glycyrrhiza glabra root extract
(Bleaching, Perfuming, Skin Conditioning, Skin Conditioning Emollient, Smoothing, Soothing) |
|
|
1
|
|
Polygonum Cuspidatum Root Extract
(Antioxidant) |
|
|
|
|
CHAMOMILLA RECUTITA FLOWER EXTRACT
(Fragrance, Skin Conditioning) |
|
|
|
|
rosmarinus officinalis leaf extract
(Antimicrobial, Fragrance, Skin Conditioning) |
|
|
1
|
|
Glucosylrutin
(Antioxidant) |
|
|
2
|
A
|
Hydrogenated Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Suspending Agent Nonsurfactant) |
|
|
1
|
|
Hydrolyzed Soy
(Skin Conditioning) |
|
|
2
3
|
|
Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient) |
|
|
1
|
|
Glycosyl Trehalose
(Binding Agent, Emulsion Stabilising, Film Forming, Humectant, Skin Protecting) |
|
|
1
|
A
|
Hydrogenated Starch Hydrolysate
(Humectant, Oral Care Agent) |
|
|
1
|
A
|
Ethylhexylglycerin
(Deodorant, Skin Conditioning) |
|
|
1
|
A
|
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent) |
|
|
|
|
Zea Mays Oil
(Fragrance, Hair Conditioning, Perfuming, Skin Conditioning, Surfactant Emulsifying) |
|
|
|
|
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning) |
|
|
2
|
A
|
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
|
|
1
|
A
|
Phytosterols
(Skin Conditioning) |
|
|
3
|
B
|
PEG-60 Hydrogenated Castor Oil
(Fragrance, Sufactant, Surfactant) |
Fungal Acne Trigger
|
|
1
|
A
|
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling) |
|
|
1
|
A
|
Arginine
(Fragrance, Hair Conditioning, Skin Conditioning, Antistatic Agent, Masking) |
|
|
1
|
A
|
Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking) |
|
6
|
A
|
BHT
(Antioxidant, Fragrance, Masking) |
|
|
3
|
|
Cerebrosides
(Emollient, Skin Conditioning, Skin Protecting) |
|
|
1
|
A
|
Cyclodextrin
(Absorbent, Chelating Agent) |
|
|
1
|
A
|
Pentylene Glycol
(Skin Conditioning, Solvent) |
|
|
4
|
A
|
Phenoxyethanol
(Fragrance, Preservative) |
Paraben
|
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 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.
Ascorbyl Glucoside, Bis-Glyceryl Ascorbate, Ascorbyl Tetraisopalmitate, 3-O-ETHYL ASCORBIC ACID
Most research uses 2–5%; some formulas go to 10%. Very high levels can cause flushing in sensitive skin.
Niacinamide, Nicotinamide Mononucleotide
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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