Erno Laszlo

Erno Laszlo Firmarine Eye Serum

Name: Erno Laszlo - Firmarine Eye Serum
Brand: Erno Laszlo

Efficacy87/100IrritancyMedium

See all ingredients

Works for

Moisturizing

Urea, Glycerin + 15 more

Works well

What the product description says

“Also formulated with Sodium Hyaluronate to deliver optimum moisture, this soothing serum will reduce puffiness and smooth out fine lines, giving you a younger feel and appearance.”

Source: Mankind

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. 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. The following ingredients in this product do the job: algae extract, glycerin.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: algae extract, glycosaminoglycans.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: urea

UreaHero· HumectantEffect: HighNaturally present in skin (urea makes up about 7% of natural moisturizing factors in skin). Attracts water to the upper layer of the skin. Also has a positive effect on the skin barrier beyond the humectant action. Can enhance penetration of other ingredients. Is an exfoliating ingredient when used in high concentrations~0.05–0.2%

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~2.8–4.3%

Algae extractKey active· Humectant, EmollientEffect: HighPlant extract that helps the skin to attract water and make it more smooth for touch. Also shows promise of anti-aging properties, but research is not extensive yet~1.8–2.6%

Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~1.1–1.6%

GlycosaminoglycansKey active· EmollientEffect: HighLong sugars that help attract water to the upper layer of the skin~0.2–0.75%

Sodium lactateKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin. Is often used to adjust the pH level of the product~0.05–0.25%

LysineKey activeEffect: HighAn amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles~0.05–0.2%

SerineKey activeEffect: HighAn amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles~0.05–0.2%

PhospholipidsKey activeEffect: MediumEmollients that are naturaly present in skin. In addition, they help water and oil mix together in the product~0.05–0.1%

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~5–7.5%

Camellia sinensis leaf extractEffect: LowCan contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation~0.85–1.3%

Aloe barbadensis leaf extract· Humectant, EmollientEffect: LowTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin~0.5–1.2%

Pentylene glycol· EmollientEffect: LowUsed to preserve products, dissolve other ingredients and create a nice product texture~0.05–0.15%

Sorbitol· HumectantEffect: LowHelps attract water to the upper layer of the skin and improves the product texture~0.05–0.25%

Cucumis sativus fruit extractEffect: Low, below effective doseMight be somewhat helpful in reducing hyperpigmentation and neutralizing free radicals but its typical concentration in a product is too low for having an effect~0.95–1.45%

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%

AllantoinUnder-dosedHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.01–0.05%

Anti-aging

Lysine, Serine + 5 more

May help

What the product description says

“Also formulated with Sodium Hyaluronate to deliver optimum moisture, this soothing serum will reduce puffiness and smooth out fine lines, giving you a younger feel and appearance.”

Source: Mankind

This product contains lysine, serine. These ingredients might be able to help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness, but there is not enough evidence that it actually works.

LysineKey activeEffect: MediumAn amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles~0.05–0.2%

SerineKey activeEffect: MediumAn amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles~0.05–0.2%

Algae extractEffect: LowPlant extract that helps the skin to attract water and make it more smooth for touch. Also shows promise of anti-aging properties, but research is not extensive yet~1.8–2.6%

Ascorbyl palmitateEffect: Low, below effective doseBeing a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.~0.05–0.15%

Retinyl palmitateUnder-dosedThree steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect~0.01–0.05%

Anti-oxidation

Side benefit · Camellia sinensis leaf extract, Cucumis sativus fruit extract + 2 more

May help

This product contains antioxidants (camellia sinensis leaf extract) that might be able to help neutralize free radicals in skin to lessen the damage it gets from the UV light (sun). There is not enough evidence to confirm their effectiveness in skin though.

Camellia sinensis leaf extractKey activeEffect: MediumCan contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation~0.85–1.3%

Tocopheryl acetateEffect: Low, below effective doseA more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.~0.05–0.1%

Can it cause trouble?

Irritancy

2 strong irritants: Retinyl palmitate, Methylisothiazolinone

Medium risk

We flagged 12 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.

IngredientFunctionIrritationEst. amount

PullulanCreates a thin drying film on the skin resulting in a short-term tightening effectHigh~1.4–2.1%est.

Retinyl palmitateThree steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effectHigh~0.01–0.05%est.

MethylisothiazolinoneA preservative. Is a frequent allergenHigh~0.00075–0.0015%est.

Cucumis sativus fruit extractMight be somewhat helpful in reducing hyperpigmentation and neutralizing free radicals but its typical concentration in a product is too low for having an effectMedium~0.95–1.45%est.

Aloe barbadensis leaf extractTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skinMedium~0.5–1.2%est.

Sodium lactateHelps attract water to the upper layer of the skin. Is often used to adjust the pH level of the productMedium~0.05–0.25%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.

Pentylene glycolUsed to preserve products, dissolve other ingredients and create a nice product textureMedium~0.05–0.15%est.

Tocopheryl acetateA more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.Medium~0.05–0.1%est.

Ascorbyl palmitateBeing a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.Medium~0.05–0.15%est.

Disodium edtaStabilizes the product formulationMedium~0.01–0.05%est.

Ci 42090A colorant (dye)Medium~0.05–0.15%est.

Comedogenic

2 ingredients rated 2 or more on the 0–5 pore-clogging scale

2 flagged

These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.

IngredientFunctionRatingEst. amount

Spirulina maxima extract—3/5~2.3–3.4%est.

Algae extractPlant extract that helps the skin to attract water and make it more smooth for touch. Also shows promise of anti-aging properties, but research is not extensive yet3/5~1.8–2.6%est.

Alternatives

Cheaper, or higher on efficacy

Zirh Repair Deep Wrinkle Concentrate

Cheaper57% match

$58.36

Elizabeth Arden PREVAGE Anti-Aging Eye Serum

Cheaper55% match

$103.97

View all alternatives

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Ingredients

Filter by role to see what each ingredient is doing.

Water~40–60%

Formula

Irritation risk: Low

Plain old water

More about Water

Butylene glycol~5–7.5%

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

Glycerin~2.8–4.3%

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

Spirulina maxima extract~2.3–3.4%

Comedogenic 3/5

Irritation risk: Low
Comedogenicity: 3/5

More about Spirulina maxima extract

Algae extract~1.8–2.6%

Key activeComedogenic 3/5

Irritation risk: Low
Comedogenicity: 3/5

Works for

MoisturizingAnti-aging

Plant extract that helps the skin to attract water and make it more smooth for touch. Also shows promise of anti-aging properties, but research is not extensive yet

More about Algae extract

Pullulan~1.4–2.1%

Irritant · high

Irritation risk: High

Works for

Mattifying

Creates a thin drying film on the skin resulting in a short-term tightening effect

More about Pullulan

Cucumis sativus fruit extract~0.95–1.45%

Irritant · medium

Irritation risk: Medium

Works for

Anti-oxidationMoisturizing

Might be somewhat helpful in reducing hyperpigmentation and neutralizing free radicals but its typical concentration in a product is too low for having an effect

More about Cucumis sativus fruit extract

Sodium hyaluronate~1.1–1.6%

Key active

Irritation risk: Low

Works for

Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin

More about Sodium hyaluronate

Camellia sinensis leaf extract~0.85–1.3%

Key active

Irritation risk: Low

Works for

Anti-oxidationAntibacterialAnti-agingMoisturizingAnti-blemishEvens skin tone

Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation

More about Camellia sinensis leaf extract

Aloe barbadensis leaf extract~0.5–1.2%

Irritant · medium

Irritation risk: Medium

Works for

Moisturizing

Traditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin

More about Aloe barbadensis leaf extract

Maris aqua~0.3–0.75%

Formula

Irritation risk: Low

Sea water. Helps dissolve other ingredients in a product

More about Maris aqua

Glycosaminoglycans~0.2–0.75%

Key active

Irritation risk: Low

Works for

Moisturizing

Long sugars that help attract water to the upper layer of the skin

More about Glycosaminoglycans

Magnesium chloride~0.1–0.35%

Formula

Irritation risk: Low

Helps thicken the product formulation

More about Magnesium chloride

Sodium lactate~0.05–0.25%

Key activeIrritant · medium

Irritation risk: Medium

Works for

Moisturizing

Helps attract water to the upper layer of the skin. Is often used to adjust the pH level of the product

More about Sodium lactate

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

Serine~0.05–0.2%

Key active

Irritation risk: Low

Works for

MoisturizingAnti-aging

An amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles

More about Serine

Urea~0.05–0.2%

Hero · Moisturizing

Irritation risk: Low

Works for

MoisturizingExfoliation

Naturally present in skin (urea makes up about 7% of natural moisturizing factors in skin). Attracts water to the upper layer of the skin. Also has a positive effect on the skin barrier beyond the humectant action. Can enhance penetration of other ingredients. Is an exfoliating ingredient when used in high concentrations

More about Urea

Sorbitol~0.05–0.25%

Formula

Irritation risk: Low

Works for

Moisturizing

Helps attract water to the upper layer of the skin and improves the product texture

More about Sorbitol

Potassium chloride~0.05–0.25%

Formula

Irritation risk: Low

More about Potassium chloride

Zinc chloride~0.05–0.15%

Formula

Irritation risk: Low

More about Zinc chloride

Lysine~0.05–0.2%

Key active

Irritation risk: Low

Works for

MoisturizingAnti-aging

An amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles

More about Lysine

Allantoin~0.01–0.05%

Under-dosed

Irritation risk: Low

Works for

Anti-inflammatoryMoisturizingReduces irritationReduces rednessAnti-blemishExfoliation

Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated

More about Allantoin

Pentylene glycol~0.05–0.15%

Irritant · medium

Irritation risk: Medium

Works for

Moisturizing

Used to preserve products, dissolve other ingredients and create a nice product texture

More about Pentylene glycol

Phospholipids~0.05–0.1%

Key active

Irritation risk: Low

Works for

Moisturizing

Emollients that are naturaly present in skin. In addition, they help water and oil mix together in the product

More about Phospholipids

Tocopheryl acetate~0.05–0.1%

Irritant · medium

Irritation risk: Medium

Works for

Anti-oxidation

A more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.

More about Tocopheryl acetate

Retinyl palmitate~0.01–0.05%

Under-dosedIrritant · high

Irritation risk: High

Works for

Anti-agingEvens skin toneAnti-blemishExfoliation

Three steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect

More about Retinyl palmitate

Ascorbyl palmitate~0.05–0.15%

Irritant · medium

Irritation risk: Medium

Works for

Anti-agingAnti-oxidation

Being a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.

More about Ascorbyl palmitate

Sodium chloride~0.05–0.25%

Formula

Irritation risk: Low

Used to stabilize mixtures of oil and water, and create thicker, gel-like product textures

More about Sodium chloride

Carbomer~0.05–0.1%

Formula

Irritation risk: Low

Works for

Cleansing

Helps create a thicker or gel-like product texture. It is not a surfactant but can be used in gentle cleansing formulations

More about Carbomer

Sodium hydroxide~0.01–0.1%

Formula

Irritation risk: Low

Used to adjust the product's pH

More about Sodium hydroxide

Disodium edta~0.01–0.05%

Irritant · medium

Irritation risk: Medium

Stabilizes the product formulation

More about Disodium edta

Phenoxyethanol~0.01–0.05%

Formula

Irritation risk: Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol

Methylisothiazolinone~0.00075–0.0015%

Irritant · high

Irritation risk: High

A preservative. Is a frequent allergen

More about Methylisothiazolinone

Ci 42090~0.05–0.15%

Irritant · medium

Irritation risk: Medium

A colorant (dye)

More about Ci 42090

Ingredient list view

Water, Butylene glycol, Glycerin, Spirulina maxima extract, Algae extract, Pullulan, Cucumis sativus fruit extract, Sodium hyaluronate, Camellia sinensis leaf extract, Aloe barbadensis leaf extract, Maris aqua, Glycosaminoglycans, Magnesium chloride, Sodium lactate, Lactic acid, Serine, Urea, Sorbitol, Potassium chloride, Zinc chloride, Lysine, Allantoin, Pentylene glycol, Phospholipids, Tocopheryl acetate, Retinyl palmitate, Ascorbyl palmitate, Sodium chloride, Carbomer, Sodium hydroxide, Disodium edta, Phenoxyethanol, Methylisothiazolinone, Ci 42090

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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
	Erno LaszloFirmarine Eye SerumYOUR PRODUCT	ZirhRepair Deep Wrinkle Concentrate	Elizabeth ArdenPREVAGE Anti-Aging Eye Serum	Elizabeth GrantHydra Cell Active Eye Repair Serum
Match	—	57%	55%	54%
Price	—	$58.36	$103.97	—
Shared key ingredients	—	5 of 10	5 of 10	6 of 10
Key difference	—	Acetyl Octapeptide-3	Acetyl Tetrapeptide-5	Panthenol
Irritancy	Medium	Medium	Medium	Medium
Drying alcohol	—	—	—	—
	View product	Shop	Shop	Shop

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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 9 studies and safety reviews.

1
Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
2
Hyaluronic acid: A key molecule in skin agingncbi.nlm.nih.gov
3
Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin careresearchgate.net
4
Epidermal and dermal effects of topical lactic acidncbi.nlm.nih.gov
5
Dual Effects of Alpha-Hydroxy Acids on the Skinpdfs.semanticscholar.org
6
Topical palmitoyl pentapeptide provides improvement in photoaged human facial skinonlinelibrary.wiley.com
7
Topical urea in skincare: A reviewpubmed.ncbi.nlm.nih.gov
8
Profile of wound healing process induced by allantoinscielo.br
9
Methylisothiazolinone contact allergy: a reviewpubmed.ncbi.nlm.nih.gov

Erno LaszloFirmarine Eye Serum

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