The INKEY List CA Phytic Acid Serum

The INKEY List CA Phytic Acid Serum

Efficacy75/100IrritancyLow

Works for

Moisturizing
Glycerin, Butylene glycol + 2 more
Works
What the product description says
“Helps calm and sooth oily skin, by reducing inflammation to improve the skin barrier.”
Source: Inkey List UK

This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": glycerin, butylene glycol.

When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. If the air is dry, humectants can speed up the moisture loss from the skin. This is why it is a good idea to use another product on top of this one to help "seal in" the moisture (look for ingredients like dimethicone, squalane, oils and butters).

GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~2.1–3.2%
Butylene glycol· HumectantEffect: LowUsed to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin~3.4–5.1%
Lecithin· EmollientEffect: LowUsed mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin~0.45–1.1%
Lactic acidUnder-dosedAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~0.05–0.2%

Can it cause trouble?

Irritancy
4 flagged ingredients
Low risk
We flag 4 ingredients with irritancy potential; the product's overall irritancy is low. The table lists each ingredient's own rating.
IngredientFunctionIrritationEst. amount
Phytic acidAn alpha-hydroxy acid (AHA), but is mostly used to stabilize product formulations in cosmeticsMedium~2.7–4.1%est.
EthylhexylglycerinA preservativeMedium~0.55–1.3%est.
Lactic acidAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)Medium~0.05–0.2%est.
Potassium sorbateA preservativeMedium~0.05–0.25%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged

User reviews

Would you recommend?
No community reviews yet.

Be the first — your take helps the next person decide.

Ingredients

Filter by role to see what each ingredient is doing.

Water~40–60%
Formula
Irritation risk
Low

Plain old water

More about Water
Propanediol~4.3–6.4%
Formula
Irritation risk
Low

Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin

More about Propanediol
Butylene glycol~3.4–5.1%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin

More about Butylene glycol
Phytic acid~2.7–4.1%
Irritant · medium
Irritation risk
Medium

An alpha-hydroxy acid (AHA), but is mostly used to stabilize product formulations in cosmetics

More about Phytic acid
Glycerin~2.1–3.2%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin
Phenoxyethanol~0.5–1%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Sodium hydroxide~1.2–1.8%
Formula
Irritation risk
Low

Used to adjust the product's pH

More about Sodium hydroxide
Ammonium acryloyldimethyltaurate/vp copolymer~1.1–1.6%
Formula
Irritation risk
Low

Increases thickness of a product. Texture enhancer for oil-in-water emulsions

More about Ammonium acryloyldimethyltaurate/vp copolymer
Ethylhexylglycerin~0.55–1.3%
Irritant · medium
Irritation risk
Medium

A preservative

More about Ethylhexylglycerin
Xanthan gum~0.45–1.05%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Lecithin~0.45–1.1%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

Used mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin

More about Lecithin
Sodium phytate~0.15–0.65%
Formula
Irritation risk
Low

Used to stabilize product formulations

More about Sodium phytate
Tetraselmis suecica extract~0.1–0.5%
Formula
Sodium benzoate~0.1–0.35%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Lactic acid~0.05–0.2%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
Evens skin toneMoisturizingExfoliationAnti-aging

An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)

More about Lactic acid
Potassium sorbate~0.05–0.25%
Irritant · medium
Irritation risk
Medium

A preservative

More about Potassium sorbate
Ingredient list view

Water, Propanediol, Butylene glycol, Phytic acid, Glycerin, Phenoxyethanol, Sodium hydroxide, Ammonium acryloyldimethyltaurate/vp copolymer, Ethylhexylglycerin, Xanthan gum, Lecithin, Sodium phytate, Tetraselmis suecica extract, Sodium benzoate, Lactic acid, Potassium sorbate

Compare prices

Retailers ranked by price — lowest first.

No pricing data available yet for this product.

Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
The INKEY List CAPhytic Acid SerumYOUR PRODUCTTruforaDay Serum 85RevolutionEncapsulated Resveratrol SerumROVECTINClean Forever Young Biome Ampoule
Match—41%41%40%
Price——$5.32—
Shared key ingredients—1 of 11 of 11 of 1
Key difference—Dipeptide-4MannitolNiacinamide
Irritancy Low Low Low Low
Drying alcohol————
View product Shop Shop Shop

More alternatives: Kiehl's Retinol Fast Release Wrinkle-Reducing Night SerumSkincall Daily Triple Serum

Cheaper alternatives? Browse formulas in the same category.
We compare ingredient profiles across our catalog — pick the closest match for your budget.
Open dupe finder

Product summary

"The INKEY List CA - Phytic Acid Serum" could be helpful for: Moisturizing, but its actives are not the most effective or are not well-studied.

Ingredient callouts

  • Humectants (glycerin 2.10% - 3.20%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

About the brand

According to Cruelty-Free Kitty "The INKEY List CA" is cruelty free and so is its parent company.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 5 studies and safety reviews.

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
The INKEY List CA Phytic Acid Serum
The INKEY List CAPhytic Acid Serum

Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

As an Amazon Associate, WIMJ earns from qualifying purchases.