Tirtir Niacinamide 20% Serum Versus Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide
Updated on June 17, 2024
Overview
What they are
These products are both reef safe serums. They have a total of 7 ingredients in common
Cool Features
They both contain hyaluronic acid, niacinamide and retinoid
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, common allergens, parabens, silicones or sulfates
What's Inside
They both contain oils
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
Tirtir Niacinamide 20% Serum 37 ingredients
Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide 43 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Tirtir Niacinamide 20% Serum 37 ingredients
Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide 43 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningNiacinamide
Smoothing
Glycerin
Humectant
Butylene Glycol
Humectant
Propanediol
SolventAlpha-Arbutin
Antioxidant
1,2-Hexanediol
Skin ConditioningHydroxyacetophenone
Antioxidant
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingTromethamine
BufferingGlycereth-25 PCA Isostearate
Emulsifying
Ethylhexylglycerin
Skin ConditioningCaprylic/Capric Triglyceride
MaskingMacadamia Ternifolia Seed Oil
Emollient
Zea Mays Kernel Extract
Disodium EDTA
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingHydrogenated Lecithin
EmulsifyingRetinol
Skin Conditioning
Hyaluronic Acid
Humectant
Hydrolyzed Hyaluronic Acid
Humectant
Sodium Hyaluronate
Humectant
Brassica Campestris Sterols
Emollient
Cholesterol
Emollient
Polyglyceryl-10 Laurate
Skin Conditioning
Phytosteryl/Behenyl/Octyldodecyl Lauroyl Glutamate
Skin ConditioningAluminum/Magnesium Hydroxide Stearate
Emulsion StabilisingPentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Antioxidant
Polysorbate 60
Emulsifying
Sorbitan Isostearate
Emulsifying
Fructan
Skin ConditioningPotassium Cetyl Phosphate
EmulsifyingGlucose
HumectantChitosan
Tris(Tetramethylhydroxypiperidinol)Citrate
StabilisingGlutathione
Zinc PCA
Humectant
Water, Niacinamide, Glycerin, Butylene Glycol, Propanediol, Alpha-Arbutin, 1,2-Hexanediol, Hydroxyacetophenone, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Tromethamine, Glycereth-25 PCA Isostearate, Ethylhexylglycerin, Caprylic/Capric Triglyceride, Macadamia Ternifolia Seed Oil, Zea Mays Kernel Extract, Disodium EDTA, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Hydrogenated Lecithin, Retinol, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate, Brassica Campestris Sterols, Cholesterol, Polyglyceryl-10 Laurate, Phytosteryl/Behenyl/Octyldodecyl Lauroyl Glutamate, Aluminum/Magnesium Hydroxide Stearate, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Polysorbate 60, Sorbitan Isostearate, Fructan, Potassium Cetyl Phosphate, Glucose, Chitosan, Tris(Tetramethylhydroxypiperidinol)Citrate, Glutathione, Zinc PCA
Water
Skin ConditioningGlycerin
Humectant
Butylene Glycol
Humectant
Pentylene Glycol
Skin ConditioningNiacinamide
Smoothing
Cetyl Alcohol
Emollient
Isohexadecane
EmollientIsononyl Isononanoate
EmollientDiisopropyl Sebacate
Emollient2-Oleamido-1,3-Octadecanediol
Skin Conditioning4-T-Butylcyclohexanol
Masking
Acetyl Dipeptide-1 Cetyl Ester
Skin Conditioning
Adenosine
Skin Conditioning
Ceramide NP
Skin Conditioning
Hydroxypalmitoyl Sphinganine
Skin Conditioning
Lauroyl Lysine
Skin ConditioningOctyldodecanol
EmollientPentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Antioxidant
Sodium Chloride
Masking
Sodium Hyaluronate
Humectant
Sodium Hydroxide
BufferingTrisodium Ethylenediamine Disuccinate
Retinol
Skin Conditioning
Tocopherol
Antioxidant
Dicaprylyl Ether
EmollientAmmonium Polyacryloyldimethyl Taurate
Emulsion StabilisingBehenyl Alcohol
Emollient
Caprylyl Glycol
EmollientCarbomer
Emulsion StabilisingCetearyl Alcohol
Emollient
Cetearyl Glucoside
EmulsifyingGlycine Soja Oil
Emollient
Helianthus Annuus Seed Oil
Emollient
Hydroxyethylcellulose
Emulsion StabilisingLecithin
EmollientPhenethyl Alcohol
MaskingPoloxamer 188
EmulsifyingPolycaprolactone
StabilisingSorbitan Laurate
Emulsifying
Steareth-100
Gel FormingCI 40800
Cosmetic ColorantChlorphenesin
Antimicrobial
Phenoxyethanol
Preservative
Water, Glycerin, Butylene Glycol, Pentylene Glycol, Niacinamide, Cetyl Alcohol, Isohexadecane, Isononyl Isononanoate, Diisopropyl Sebacate, 2-Oleamido-1,3-Octadecanediol, 4-T-Butylcyclohexanol, Acetyl Dipeptide-1 Cetyl Ester, Adenosine, Ceramide NP, Hydroxypalmitoyl Sphinganine, Lauroyl Lysine, Octyldodecanol, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Sodium Chloride, Sodium Hyaluronate, Sodium Hydroxide, Trisodium Ethylenediamine Disuccinate, Retinol, Tocopherol, Dicaprylyl Ether, Ammonium Polyacryloyldimethyl Taurate, Behenyl Alcohol, Caprylyl Glycol, Carbomer, Cetearyl Alcohol, Cetearyl Glucoside, Glycine Soja Oil, Helianthus Annuus Seed Oil, Hydroxyethylcellulose, Lecithin, Phenethyl Alcohol, Poloxamer 188, Polycaprolactone, Sorbitan Laurate, Steareth-100, CI 40800, Chlorphenesin, Phenoxyethanol
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterNiacinamide has emerged as an all-star ingredient due to its many benefits.
It is known to treat acne by reducing inflammation. It also helps fade dark-spots and strengthen the skin by promoting the growth of the ceramide barrier.
Other benefits include smoothing wrinkles and minimizing redness.
The cherry on top? Niacinamide can also help build keratin, a protein that keeps skin firm.
When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.
Niacinamide can be mixed with other ingredients to boost benefits. For instance, it has shown to be effective when used with copper, folic acid, and zinc to treat acne.
Learn more about NiacinamideGlycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinButylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
- It has mild preservative properties.
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Retinol is a gold-standard ingredient for anti-aging. It is a form of Vitamin A and belongs to the class of retinoids that also includes tretinoin.
Why is retinol famous?
It has the most scientific studies backing up its skin benefits out of all the non-prescription ingredients.
Retinol is proven to:
This is why retinol is effective at removing wrinkles, fading dark spots, treating acne, and reducing the appearance of pores.
Studies show retinol is less effective when exposed to UV. Be sure to look for appropriate packaging to keep your retinol potent (similar to Vitamin C).
Using retinol or any retinoids will increase sun-sensitivity in the first few months. Though studies show retinoids increase your skin's natural SPF with continuous use, it is best to always wear sunscreen and sun-protection.
We recommend speaking with a medical professional about using this ingredient during pregnancy.
Retinol may cause irritation in some people, so be sure to patch test. Experts recommend 'ramping up' retinol use: start using this ingredient once a week and work up to using it daily.
Read about Tretinoin
Learn more about RetinolSodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.
Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.
These are some other common types of Hyaluronic Acid:
Learn more about Sodium HyaluronatePentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate (long name, huh?) is a synthetic antioxidant.
It is used to help stabilize other antioxidants or prevent the color from changing in a product.
As an antioxidant, it helps fight free-radical molecules. Free-radical molecules are capable of damaging our cells and other genetic material. Thus, antioxidants may reduce the signs of aging.
This ingredient is oil-soluble.
Learn more about Pentaerythrityl Tetra-Di-T-Butyl HydroxyhydrocinnamateIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Tirtir Niacinamide 20% Serum 37 ingredients
Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide 43 ingredients
Reviews
Here's what our community thinks
Tirtir Niacinamide 20% Serum 37 ingredients
Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide 43 ingredients
Great retinol for beginners
This is a product with a low dose of retinol, which makes the product suited to apply in the eye area as well. A lot of my earlier products containing retinol were serums, while this is more of a cream. It makes it more hydrating, but without an additional moisturiser it is still drying me out.
Although the percentage of retinol is low, your skin has to adjust to Show more
This is my first Retinol ever and I’m happy that it works and it doesn’t irritate my sensitive skin. I noticed fine lines on my forehead are reduced. And I wake up with less redness and little to no breakouts.
