PRODUCT REVIEW
Algenist Strengthen Your Barrier
Works for:
based on ingredients and %- Anti-aging
- Evens skin tone
- Anti-oxidation
- Moisturizing
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Can it cause trouble?
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Cheaper alternatives
Facetheory - Replenamist T5 with 2% Niacinamide, Prickly Pear and Cactus Water
Price: $9.45
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What can the product work for?
Works for
Anti-aging
What does the product description say?
Skin barrier is fortified to help improve the appearance of dullness, redness, discoloration, lines, and skin tone.
heptapeptide-15 palmitate
0.5% -
0.7%
Irritation risk:
Concentration: Effectiveness: HIGH
A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles
copper palmitoyl heptapeptide-14
0.65% -
1%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
A synthetic peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles. Can help speed up wound healing
epigallocatechin gallate
0.45% -
0.65%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
A polyphenol found in tea. This particular compound abbreviated EGCG is the most powerful antioxidant among those extracted from tea (usually green tea). Unfortunately, EGCG is unstable, requires a low pH (below 4) to prevent quick degradation, and does not penetrate the skin very well. This is why the full anti-oxidant effect of EGCG is typically not realized when it is added to topical skincare
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Evens skin tone
What does the product description say?
Skin barrier is fortified to help improve the appearance of dullness, redness, discoloration, lines, and skin tone.
epigallocatechin gallate
0.45% -
0.65%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
A polyphenol found in tea. This particular compound abbreviated EGCG is the most powerful antioxidant among those extracted from tea (usually green tea). Unfortunately, EGCG is unstable, requires a low pH (below 4) to prevent quick degradation, and does not penetrate the skin very well. This is why the full anti-oxidant effect of EGCG is typically not realized when it is added to topical skincare
phloretin
1.2% -
1.5%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
A potent antioxidant that is able to penetrate the skin barrier. It can help neutralize free radicals in skin, fight photodamage and reduce hyperpigmentation. It is, however, unstable and loses effectiveness when exposed to light. Effective products with phloretin must come in air-tight opaque packaging and use a sophisticated delivery technology
alanine
0.25% -
0.45%
Irritation risk:
Concentration: Effectiveness:
LOW
An amino-acid that helps to attract water to the upper layer of the skin and might help to lighten the skin, but solid evidence is lacking
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Moisturizing
pca
0.25% -
0.45%
Irritation risk:
Concentration: Effectiveness: HIGH
Naturally present in skin and helps to attract water to its upper layer
arginine
0.15% -
0.3%
Irritation risk:
Concentration: Effectiveness: HIGH
An amino acid that is naturally present in skin and helps keep it hydrated. When used together with AHAs, it can reduce their irritating effect on the skin
aspartic acid
0.25% -
0.5%
Irritation risk:
Concentration: Effectiveness: HIGH
An amino-acid that helps increase skin hydration and might help to slightly improve skin firmness, potentially reducing lines and wrinkles
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Anti-oxidation
phloretin
1.2% -
1.5%
Irritation risk:
Concentration: Effectiveness: HIGH
A potent antioxidant that is able to penetrate the skin barrier. It can help neutralize free radicals in skin, fight photodamage and reduce hyperpigmentation. It is, however, unstable and loses effectiveness when exposed to light. Effective products with phloretin must come in air-tight opaque packaging and use a sophisticated delivery technology
epigallocatechin gallate
0.45% -
0.65%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
A polyphenol found in tea. This particular compound abbreviated EGCG is the most powerful antioxidant among those extracted from tea (usually green tea). Unfortunately, EGCG is unstable, requires a low pH (below 4) to prevent quick degradation, and does not penetrate the skin very well. This is why the full anti-oxidant effect of EGCG is typically not realized when it is added to topical skincare
parachlorella beijerinckii exopolysaccharides
1.5% -
1.8%
Irritation risk:
Concentration: Effectiveness:
LOW
Compounds extracted from green algae that could help neutralize free radicals, but evidence of effectiveness in skincare products (topical applicaiton) is missing. Helps moisturize the skin by attracting water to its upper layer
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Honesty check
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Anti-aging | |
| Evens skin tone |
Total Promises Fulfilled score:
87/100.
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Can it cause trouble?
- Overall product irritation risk
- Acne & comedogenic risk ingredients: 0
Potential irritants
ascorbic acid
0.15% -
0.3%
Irritation risk:
Works for:
Anti-aging,
Anti-oxidation,
Evens skin tone
The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging
retinyl palmitate
0.15% -
0.25%
Irritation risk:
Works for:
Evens skin tone,
Anti-blemish,
Anti-aging,
Exfoliation
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
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Comodogenic ingredients
No comodogenic ingredients detected
Similar products & dupes
| Algenist - Strengthen Your Barrier |  NEOGEN X SUR.MEDIC - Probiotics Youth Relief Cream Sponsored | NEOGEN X SUR.MEDIC - Probiotics Youth Relief Cream | Facetheory - Replenamist T5 with 2% Niacinamide, Prickly Pear and Cactus Water |  MZ Skin - Vitamin Infused Meso Face Mask |  Superegg - Tonal Scenery Reparative Serum |  Lumene - Nordic Ageless [AJATON] Radiant Youth Night Cream |  Mizon - Collagen Power Lifting Toner |  Lancer Skincare - Lancer Triple Peptide Drops with Vitamin E + Niacinamide |  AHC - Hydrating Korean Skincare Aqualuronic Face Serum |  Maruderm - Vitamin C & Peptide Skin Brightening Serum |  Skin Functional - Hydrating Tonic 1% Centella Asiática + 2% Hyaluronic Acid | |
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| WIMJ similarity score |
71%
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70%
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| Irritancy | IRRITANCY
MEDIUM
| IRRITANCY
HIGH
| IRRITANCY
HIGH
| IRRITANCY
LOW
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MEDIUM
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MEDIUM
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MEDIUM
| IRRITANCY
LOW
| IRRITANCY
MEDIUM
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MEDIUM
| IRRITANCY
LOW
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LOW
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Ingredients & concentrations
All ingredients
Key Actives
niacinamide
0.15% -
0.3%
Irritation risk:
Works for:
Evens skin tone,
Anti-blemish,
Anti-aging,
Moisturizing,
Reduces irritation,
Antibacterial,
Reduces redness,
Anti-inflammatory
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture.
The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
epigallocatechin gallate
0.45% -
0.65%
Irritation risk:
Works for:
Anti-oxidation,
Evens skin tone,
Anti-blemish,
Anti-aging,
Moisturizing
A polyphenol found in tea. This particular compound abbreviated EGCG is the most powerful antioxidant among those extracted from tea (usually green tea). Unfortunately, EGCG is unstable, requires a low pH (below 4) to prevent quick degradation, and does not penetrate the skin very well. This is why the full anti-oxidant effect of EGCG is typically not realized when it is added to topical skincare
Show more
Potential irritants
ascorbic acid
0.15% -
0.3%
Irritation risk:
Works for:
Anti-aging,
Anti-oxidation,
Evens skin tone
The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging
retinyl palmitate
0.15% -
0.25%
Irritation risk:
Works for:
Evens skin tone,
Anti-blemish,
Anti-aging,
Exfoliation
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
Show more
Comodogenic ingredients
We couldn't find any comodogenic ingredients in this product
All ingredients
butylene glycol
5.6% -
6.9%
Irritation risk:
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
peg-8 dimethicone
3.9% -
4.8%
Irritation risk:
Works for:
Moisturizing
A type of silicone that can help create nice product texture and soften the upper layer of the skin
Show more
Ingredient list view
Water, Butylene glycol, Peg-8 dimethicone, Propanediol, Caprylyl methicone, Dimethicone, Parachlorella beijerinckii exopolysaccharides, Phloretin, Ergothioneine, Copper palmitoyl heptapeptide-14, Heptapeptide-15 palmitate, Epigallocatechin gallate, Tocopheryl acetate, Aspartic acid, Pca, Disodium edta, Alanine, Serine, Valine, Isoleucine, Proline, Threonine, Lactic acid/glycolic acid copolymer, Polyvinyl alcohol, Histidine, Phenylalanine, Arginine, Ascorbic acid, Octyldodecanol, Pyridoxine hcl, Retinyl palmitate, Silica, Sodium propoxyhydroxypropyl thiosulfate silica, Glycerin, Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, Ammonium acryloyldimethyltaurate/vp copolymer, Pentylene glycol, Isohexadecane, Adenosine triphosphate, Hydrolyzed oat protein, Niacinamide, Citric acid, Polysorbate 60, Sorbitan isostearate, Sodium pca, Sodium phytate, Sodium lactate, Sodium benzoate, Potassium sorbate, Phenoxyethanol
Sources
- Dimethicone as a protective ingredient in topical medications
- Final Report on the Safety Assessment of Dimethicone Copolyol
- Exopolysaccharides extracted from Parachlorella kessleri inhibit colon carcinoma growth in mice via stimulation of host antitumor immune responses
- Microalgal polysaccharide compositions
- The antioxidant activity of phloretin: the disclosure of a new antioxidant pharmacophore in flavonoids
- Dermatological applications of the flavonoid phloretin
- Protective Effects of Topical Vitamin C Compound Mixtures against Ozone-Induced Damage in Human Skin - Supplementary Material
- A comparison of the relative antioxidant potency of L‐ergothioneine and idebenone
- l-Ergothioneine Protects Skin Cells against UV-Induced Damage—A Preliminary Study
- Topical Peptide Treatments with Effective Anti-Aging Results
- Great green tea ingredient? A narrative literature review on epigallocatechin gallate and its biophysical properties for topical use in dermatology
- Comparative Evaluation of Different Co-Antioxidants on the Photochemical- and Functional-Stability of Epigallocatechin-3-gallate in Topical Creams Exposed to Simulated Sunlight
- Photodegradation of (−)-epigallocatechin-3-gallate in topical cream formulations and its photostabilization
- Acetyl aspartic acid, a novel active ingredient, demonstrates potential to improve signs of skin ageing: from consumer need to clinical proof
- In vivo topical application of acetyl aspartic acid increases fibrillin-1 and collagen IV deposition leading to a significant improvement of skin firmness
- Combination of amino acids reduces pigmentation in B16F0 melanoma cells
- Topical palmitoyl pentapeptide provides improvement in photoaged human facial skin
- Local rhamnosoft, ceramides and L‐isoleucine in atopic eczema: a randomized, placebo controlled trial
- Histidine and/or Histidine Derivative for the Treatment of Inflammatory Skin Diseases
- Safety Assessment of α-Amino Acids as Used in Cosmetics
- Glycerol and the skin: holistic approach to its origin and functions
- Niacinamide - mechanisms of action and its topical use in dermatology