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Aurelia London Continuity The Probiotic Concentrate
Aurelia

Aurelia London Continuity The Probiotic Concentrate

Efficacy43/100IrritancyLow
See all ingredients

Works for

Moisturizing
Bifida ferment lysate, Propylheptyl caprylate + 9 more
Works
What the product description says
“Simultaneously, our signature probiotic peptide boosts collagen by 140% and natural hyaluronic acid levels by 1,900% for a visible improvement in texture.”
Source: Feelunique

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

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).

Bifida ferment lysateKey activeEffect: HighConsists of remains of dead yeast bacteria cells. Helps to hydrate the skin and reduce irritation. Might has some anti-oxidant effect~4.1–6.2%
Propylheptyl caprylateKey active· EmollientEffect: MediumHelps soften the upper layer of the skin~3.2–4.8%
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~2.3–3.4%
LactoseKey active· HumectantEffect: MediumHelps attract water to the upper layer of the skin~1.3–1.9%
Chondrus crispus powderKey activeEffect: MediumA powder from red algae extract that helps attract water to the upper layer of the skin and create a nicer product consistency~0.9–1.35%
Milk proteinKey activeEffect: MediumHelps attract water to the upper layer of the skin~0.85–1.3%
Arachidyl alcohol· EmollientEffect: LowUsed to soften the upper layer of the skin and create a thicker product consistency~1.7–2.6%
Whey protein· EmollientEffect: LowA protein derived from milk. In skincare products, might help to soften the upper layer of the skin~1.2–1.8%
Behenyl alcohol· Emollient, OcclusiveEffect: LowNon-drying alcohol that helps water and oil mix together. Also serves as an emollient~0.5–1.15%
Glyceryl caprylate· EmollientEffect: LowAn emollient that can also help water and oil mix together, as well as prevent bacteria growth in products~0.2–0.75%
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)~0.05–0.15%
Anti-aging
Magnesium aluminum silicate, Lactic acid
Not delivered
What the product description says
“Fine lines and deeper wrinkles will appear smoother and dull skin more radiant and luminous.”
Source: Feelunique

This product does not contain ingredients that are able to reduce fine lines and wrinkles or help with skin elasticity, but it can improve the look of the skin temporarily through moisturization. Well-moisturized skin might also be able to repair the sun damage better.This ingredient - magnesium aluminum silicate - could be helpful for preventing or repairing signs of aging in theory, but there is no evidence that it actually works.

This ingredient bifida ferment lysate might be able to help neutralize free radicals in skin and help it fight off some of the sun damage.

Magnesium aluminum silicateEffect: LowMight be helpful in restoring skin barrier function and, when combined with zinc carbonate and malonic acid, reducing fine lines and wrinkles by stimulating elastin production. Also helps stabilize the product formulation~0.15–0.6%
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)~0.05–0.15%
Evens skin tone
Bifida ferment lysate, Salicylic acid + 1 more
Not delivered
What the product description says
“Hyperpigmentation and the effects of UV damage will be targeted for even toned, brighter skin.”
Source: Feelunique

This product contains ingredients (bifida ferment lysate) that could help reduce hyperpigmentation (for example, post-acne marks or age spots) in theory, but there is not enough evidence that they actually work.

Bifida ferment lysateEffect: LowConsists of remains of dead yeast bacteria cells. Helps to hydrate the skin and reduce irritation. Might has some anti-oxidant effect~4.1–6.2%
Salicylic acidEffect: Low, below effective doseUsed for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)~0.05–0.25%
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)~0.05–0.15%
Anti-blemish
Salicylic acid ~0.05–0.25%, below the ~0.5% it needs
Under-dosed
What the product description says
“The restorative formulation even works to combat blemishes and congestion; helping you achieve and maintain clear skin.”
Source: Feelunique

Effective ingredients missing or their concentration is too low.

Salicylic acidUnder-dosedUsed for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)~0.05–0.25%
Anti-oxidation
Side benefit · Bifida ferment lysate
May help

This product contains antioxidants (bifida ferment lysate) that can help neutralize free radicals in skin to lessen the damage it gets from the UV light (sun). There is some human evidence for this effect in skin, though it is smaller or less consistent than the evidence for the best antioxidants.

Bifida ferment lysateKey activeEffect: MediumConsists of remains of dead yeast bacteria cells. Helps to hydrate the skin and reduce irritation. Might has some anti-oxidant effect~4.1–6.2%

Can it cause trouble?

Irritancy
7 flagged ingredients
Low risk
We flag 7 ingredients with irritancy potential; the product's overall irritancy is low. The table lists each ingredient's own rating.
IngredientFunctionIrritationEst. amount
Salicylic acidUsed for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)High~0.05–0.25%est.
Benzyl alcoholA preservative. Can be used to mask unpleasant smell. Can be irritatingHigh~0.05–0.1%est.
HydroxyacetophenoneUsed to increase effectiveness of preservativesMedium~0.4–0.9%est.
Sodium stearoyl glutamateHelps oil and water mix togetherMedium~0.35–0.85%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.1–0.35%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~0.05–0.15%est.
Sorbic acidA preservativeMedium~0.05–0.15%est.
Comedogenic
1 ingredient rated 2 or more on the 0–5 pore-clogging scale
1 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
Chondrus crispus powderA powder from red algae extract that helps attract water to the upper layer of the skin and create a nicer product consistency3/5~0.9–1.35%est.

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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
Bifida ferment lysate~4.1–6.2%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-oxidationEvens skin tone

Consists of remains of dead yeast bacteria cells. Helps to hydrate the skin and reduce irritation. Might has some anti-oxidant effect

More about Bifida ferment lysate
Propylheptyl caprylate~3.2–4.8%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin

More about Propylheptyl caprylate
Glycerin~2.3–3.4%
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
Arachidyl alcohol~1.7–2.6%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to soften the upper layer of the skin and create a thicker product consistency

More about Arachidyl alcohol
Lactose~1.3–1.9%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin

More about Lactose
Lactis proteinum~1–1.5%
Formula
Irritation risk
Low
More about Lactis proteinum
Whey protein~1.2–1.8%
Formula
Irritation risk
Low
Works for
Moisturizing

A protein derived from milk. In skincare products, might help to soften the upper layer of the skin

More about Whey protein
Milk protein~0.85–1.3%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin

More about Milk protein
Chondrus crispus powder~0.9–1.35%
Key activeComedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
Works for
Moisturizing

A powder from red algae extract that helps attract water to the upper layer of the skin and create a nicer product consistency

More about Chondrus crispus powder
Behenyl alcohol~0.5–1.15%
Formula
Irritation risk
Low
Works for
Moisturizing

Non-drying alcohol that helps water and oil mix together. Also serves as an emollient

More about Behenyl alcohol
Hydroxyacetophenone~0.4–0.9%
Irritant · medium
Irritation risk
Medium

Used to increase effectiveness of preservatives

More about Hydroxyacetophenone
Sodium stearoyl glutamate~0.35–0.85%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Sodium stearoyl glutamate
Arachidyl glucoside~0.2–0.7%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Arachidyl glucoside
Glyceryl caprylate~0.2–0.75%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

An emollient that can also help water and oil mix together, as well as prevent bacteria growth in products

More about Glyceryl caprylate
Magnesium aluminum silicate~0.15–0.6%
Formula
Irritation risk
Low
Works for
Anti-aging

Might be helpful in restoring skin barrier function and, when combined with zinc carbonate and malonic acid, reducing fine lines and wrinkles by stimulating elastin production. Also helps stabilize the product formulation

More about Magnesium aluminum silicate
Citric acid~0.1–0.35%
Irritant · medium
Irritation risk
Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid
Sodium phytate~0.05–0.3%
Formula
Irritation risk
Low

Used to stabilize product formulations

More about Sodium phytate
Salicylic acid~0.05–0.25%
Under-dosedIrritant · high
Irritation risk
High
Works for
Anti-blemishExfoliationAnti-inflammatoryAntibacterialEvens skin tone

Used for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)

More about Salicylic acid
Lactic acid~0.05–0.15%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
ExfoliationEvens skin toneMoisturizingAnti-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
Sorbic acid~0.05–0.15%
Irritant · medium
Irritation risk
Medium

A preservative

More about Sorbic acid
Benzyl alcohol~0.05–0.1%
Irritant · high
Irritation risk
High

A preservative. Can be used to mask unpleasant smell. Can be irritating

More about Benzyl alcohol
Ingredient list view

Water, Bifida ferment lysate, Propylheptyl caprylate, Glycerin, Arachidyl alcohol, Lactose, Lactis proteinum, Whey protein, Milk protein, Chondrus crispus powder, Behenyl alcohol, Hydroxyacetophenone, Sodium stearoyl glutamate, Arachidyl glucoside, Glyceryl caprylate, Magnesium aluminum silicate, Citric acid, Sodium phytate, Salicylic acid, Lactic acid, Sorbic acid, Benzyl alcohol

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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
AureliaLondon Continuity The Probiotic ConcentrateYOUR PRODUCTSkintechPeel2Glow Sleep and Repair 2ManyoBifida Biome Ampoule PadCitation SkincareRegulate and Restore Intensive Treatment Serum
Match—33%33%31%
Price——$18.84$84.64
Shared key ingredients—2 of 22 of 22 of 2
Key difference—Lactic AcidCapryloyl Salicylic AcidCopper Tripeptide-1
Irritancy Low Low Low Medium
Drying alcohol————
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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 12 studies and safety reviews.

  1. 1
    Bifidobacterium longumlysate, a new ingredient forreactive skinonlinelibrary.wiley.com
  2. 2
    Use of Probiotics for Dermal Applicationsresearchgate.net
  3. 3
    Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
  4. 4
    TOPICAL COMPOSITIONS CONTAINING WHEY PROTEINS patentimages.storage.googleapis.com
  5. 5
    Final report on the safety assessment of aluminum silicate, calcium silicate, magnesium aluminum silicate, magnesium silicate, magnesium trisilicate, sodium magnesium silicate, zirconium silicate, attapulgite, bentonite, Fuller's earth, hectorite, kaolin, lithium magnesium silicate, lithium magnesium sodium silicate, montmorillonite, pyrophyllite, and zeolitencbi.nlm.nih.gov
  6. 6
    Extracellular matrix in cutaneous ageing: the effects of 0.1% copper-zinc malonate-containing cream on elastin biosynthesisncbi.nlm.nih.gov
Aurelia London Continuity The Probiotic Concentrate
AureliaLondon Continuity The Probiotic Concentrate
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