Dermafirm
Dermafirm Soothing Repair Serum R4
Ingredient analysis and how the ad lines read
Read on 2026-09-07
What is this product?
Dermafirm's Soothing Repair Serum R4 pairs a broad calming panel, sodium guaiazulene sulfonate with centella, purslane, witch hazel and panthenol, against five separate peptides and sixteen free amino acids across 52 ingredients. The thing to check before buying is twelfth place, where 향료 is printed, which is high for a serum aimed at reactive skin, and Dermafirm gives no amount for anything in it.
What makes it different?
Five distinct peptides plus hydrolysed collagen in one soothing serum is a heavier repair panel than the calming category usually carries, and sodium guaiazulene sulfonate is a more specific anti-inflammatory choice than centella alone. The base is water and polymer rather than an emulsion, so the ester load stays light. It also carries adenosine, the standard Korean notified wrinkle active, and the listing record prints a functional-cosmetic filing row reading 필함, though that record covers the serum and its bundled cream together and names no function, so the filing is not attributed to this serum here. Being fragranced is what most separates it from its category rivals.
What is in it?
The full ingredient list as the brand publishes it, in the printed order. Each name links to what we know about that ingredient.
This brand publishes its ingredient list in Korean only. Names below are the matching INCI names from the Korean Cosmetic Association ingredient dictionary.
Key ingredientWorth a closer look
- Water
- Butylene Glycol
- Glycerin
- Propanediol
- 1,2-Hexanediol
- Panthenol
- Polyglyceryl-4 Caprate
- Carbomer
- Allantoin
- Tromethamine
- Sodium Polyacryloyldimethyl Taurate
- Fragrance
- Ethylhexylglycerin
- Adenosine
- Disodium EDTA
- Sodium Hyaluronate
- Centella Asiatica Extract
- Hydrogenated Lecithin
- Glyceryl Acrylate/Acrylic Acid Copolymer
- Portulaca Oleracea Extract
- Caprylic/Capric Triglyceride
- PVM/MA Copolymer
- Hamamelis Virginiana (Witch Hazel) Extract
- Sodium Guaiazulene Sulfonate
- Hydrolyzed Collagen
- Arginine
- Copper Tripeptide-1
- Palmitoyl Tripeptide-1
- Perilla Ocymoides Leaf Extract
- Eucalyptus Globulus Leaf Extract
- Sodium Surfactin
- Potassium Cetyl Phosphate
- Beta-Glucan
- Acetyl Hexapeptide-8
- Palmitoyl Pentapeptide-4
- Tripeptide-1
- Glycine
- Serine
- Aspartic Acid
- Glutamic Acid
- Leucine
- Lysine
- Alanine
- Proline
- Phenylalanine
- Threonine
- Valine
- Isoleucine
- Tyrosine
- Histidine
- Cysteine
- Methionine
Ingredients with no mark are ones we found nothing notable about, and when marks overlap on one ingredient we show the caution first.
We could not place these in the list above: Caprylic/Capric Triglyceride, Polyglyceryl-4 Caprate, Hydrogenated Lecithin
Did the ad claims hold up?
We checked 2 lines this product advertises against the ingredient list and public documents. 2 of them look likely, though none are proven outright.
Claims translated from Korean, originals preserved.
likely, not proven2
- Calming Serum
Korean original
진정세럼
- Soothing Repair
Korean original
수딩 리페어
Each line is quoted as the brand published it, and each one was read on its own against the ingredient list and the documents the brand publishes.