Starter Retinol Serum Duo vs Protini™ Powerpeptide Resurfacing Serum with Lactic Acid

Shared ingredients· none here

Product facts and full ingredient lists side by side

on 2+ labelsonly on this labelnot on this labelIngredient	The Inkey List Starter Retinol Serum Duo $25.65 $24.70 at Theinkeylist ↗Save	Recommended Drunk Elephant Protini™ Powerpeptide Resurfacing Serum with Lactic Acid $73.80 Save
Basics
Type & size	Serum · size not on the record	Serum · size not on the record
Brand origindiffers	European	American
Offers
Where to buydiffers	$24.70 · Theinkeylist	Not recorded
Formula
Key activesdiffers	squalane, retinal	lactic acid, squalane, sodium hyaluronate, panthenol
Free of	fragrance-free, sulfate-free, alcohol-free, paraben-free, silicone-free	fragrance-free, sulfate-free, alcohol-free, paraben-free, silicone-free
Heads-updiffers	pregnancy caution · photosensitizing · fungal-acne triggerPore data not yet reviewed	photosensitizing · fungal-acne triggerPore data not yet reviewed
Fit & community
Rating	No reviews yet	No reviews yet
Best for	Not recorded	Not recorded
Data quality
Label coveragediffers	Fully parsed · 27 ingredients	Fully parsed · 57 ingredients
Key actives · 4
aha exfoliant (gentle)	no	yes
hyaluronic acid (salt form) Pregnancy: generally fine	no	yes
pro-vitamin b5	no	yes
retinal Pregnancy: avoid	yes	no
Rest of the labels · 60
1,2-hexanediol	yes	no
acetyl glutamine	no	yes
adenosine	no	yes
alanine	no	yes
arginine	no	yes
aspartic acid	no	yes
bacillus	no	yes
bisabolol	yes	no
borago officinalis seed oil	no	yes
butylene glycol	no	yes
camellia sinensis seed oil	no	yes
carbomer	no	yes
cetearyl alcohol	yes	no
chlorphenesin	no	yes
coco-caprylate	no	yes
coconut alkanes	no	yes
cyclodextrin	yes	no
dextran	no	yes
ethylhexylglycerin	no	yes
fatty alcohol (non-drying)	yes	no
glucosylrutin	yes	no
glyceryl behenate	yes	no
glyceryl caprylate	no	yes
glyceryl stearate Possible fungal-acne trigger	yes	no
glycine	no	yes
glycolipids	yes	no
histidine	no	yes
hydroxyacetophenone	yes	no
hydroxypinacolone retinoate Pregnancy: avoid	yes	no
hydroxypropyl cyclodextrin	no	yes
inulin lauryl carbamate	yes	no
isoleucine	no	yes
isomalt	no	yes
lecithin	no	yes
linoleic acid Fungal-acne trigger	no	yes
linolenic acid	no	yes
nymphaea alba root extract	no	yes
pca	no	yes
pentylene glycol	no	yes
phenylalanine	no	yes
phenylpropanol	no	yes
phytosphingosine	no	yes
polyvinyl alcohol	no	yes
proline	no	yes
sclerocarya birrea seed oil	no	yes
serine	no	yes
sodium benzoate	no	yes
sodium hyaluronate crosspolymer Pregnancy: generally fine	no	yes
sodium hydroxide	no	yes
sodium lactate	no	yes
sodium pca	no	yes
sodium phytate	yes	no
sodium stearoyl lactylate	yes	no
sorbitan isostearate Possible fungal-acne trigger	yes	no
sucrose laurate Possible fungal-acne trigger	yes	no
symphytum officinale callus culture extract	no	yes
threonine	no	yes
tocotrienols	no	yes
tremella fuciformis polysaccharide	no	yes
valine	no	yes

Rows come from parsed labels and live offers. Where a label isn’t fully captured, we say so instead of guessing.

The bottom line

Both lines come from the parsed labels and the prices on this page — neither product is the reference, and neither is called the better one.