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Osea Malibu Sea Vitamin Boost
Osea Malibu

Osea Malibu Sea Vitamin Boost

Efficacy25/100IrritancyMedium
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Works for

1 of 3 advertised claims delivered

Moisturizing
Corallina officinalis extract, Glycerin + 2 more
Good evidence
What the product description says
“It provides dewy moisture and anti-aging benefits that plump fine lines and tone your skin.”
Source: Bluemercury

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

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).

Corallina officinalis extractKey activeEffect: HighRed algae extract that helps attract water to the upper layer of the skin and might contain antioxidants~2.7–4.1%
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~0.55–1.3%
Kappaphycus alvarezii extractKey activeEffect: HighA red algae extract that can help attract water to the upper layer of the skin and might have some antioxidant properties~4.8–7.2%
AllantoinUnder-dosedEffect: HighHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.55–1.3%
Anti-aging
Magnesium ascorbyl phosphate
Weak evidence
What the product description says
“Plumps fine lines.”
Source: Bluemercury

Effective ingredients missing or their concentration is too low.

Magnesium ascorbyl phosphateEffect: Low, below effective doseA derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high~1–1.5%
Evens skin tone
Magnesium ascorbyl phosphate
Weak evidence
What the product description says
“Key Benefits Hydrates and brightens skin tone.”
Source: Bluemercury

Effective ingredients missing or their concentration is too low

Magnesium ascorbyl phosphateEffect: Low, below effective doseA derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high~1–1.5%

Can it cause trouble?

Irritancy
2 strong irritants: Hydrolyzed gardenia florida extract, Rosa damascena flower extract
Medium risk
We flagged 7 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Punica granatum fruit extractA fruit extract that is used to add a fragrance to the product. It might have some antioxidant propertiesHigh~2–3%est.
Hydrolyzed gardenia florida extractUsed as a fragrance. Might have some anti-oxidant propertiesHigh~1.3–2%est.
Lonicera caprifolium flower extractA plant extract that might help neutralize free radicals in skin. Can contain volalite oils and be irritatingHigh~0.05–0.2%est.
Rosa damascena flower extractUsed as a fragrance. Can be irritatingHigh~0.05–0.1%est.
Magnesium ascorbyl phosphateA derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very highMedium~1–1.5%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.4–0.95%est.
Potassium sorbateA preservativeMedium~0.3–0.6%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
Corallina officinalis extractRed algae extract that helps attract water to the upper layer of the skin and might contain antioxidants3/5~2.7–4.1%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
Kappaphycus alvarezii extract~4.8–7.2%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-oxidation

A red algae extract that can help attract water to the upper layer of the skin and might have some antioxidant properties

More about Kappaphycus alvarezii extract
Gigartina stellata extract~3.7–5.6%
Formula
Irritation risk
Low
More about Gigartina stellata extract
Corallina officinalis extract~2.7–4.1%
Key activeComedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
Works for
MoisturizingAnti-oxidation

Red algae extract that helps attract water to the upper layer of the skin and might contain antioxidants

More about Corallina officinalis extract
Punica granatum fruit extract~2–3%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

A fruit extract that is used to add a fragrance to the product. It might have some antioxidant properties

More about Punica granatum fruit extract
Sea water~1.6–2.4%
Formula
Irritation risk
Low

Dissolves other ingredients. It does not have additional skin benefits compared to plain water

More about Sea water
Hydrolyzed gardenia florida extract~1.3–2%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

Used as a fragrance. Might have some anti-oxidant properties

More about Hydrolyzed gardenia florida extract
Magnesium ascorbyl phosphate~1–1.5%
Irritant · medium
Irritation risk
Medium
Works for
Evens skin toneAnti-agingAnti-oxidation

A derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high

More about Magnesium ascorbyl phosphate
Allantoin~0.55–1.3%
Under-dosed
Irritation risk
Low
Works for
Anti-inflammatoryMoisturizingReduces irritationAnti-blemishReduces rednessExfoliation

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

More about Allantoin
Glycerin~0.55–1.3%
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
Citric acid~0.4–0.95%
Irritant · medium
Irritation risk
Medium

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

More about Citric acid
Potassium sorbate~0.3–0.6%
Irritant · medium
Irritation risk
Medium

A preservative

More about Potassium sorbate
Sodium benzoate~0.25–0.5%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Maltodextrin~0.1–0.5%
Formula
Irritation risk
Low
Works for
Mattifying

Used to stabilize the product formulation and can help absorb oil

More about Maltodextrin
Lonicera caprifolium flower extract~0.05–0.2%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

A plant extract that might help neutralize free radicals in skin. Can contain volalite oils and be irritating

More about Lonicera caprifolium flower extract
Rosa damascena flower extract~0.05–0.1%
Irritant · high
Irritation risk
High

Used as a fragrance. Can be irritating

More about Rosa damascena flower extract
Ingredient list view

Water, Kappaphycus alvarezii extract, Gigartina stellata extract, Corallina officinalis extract, Punica granatum fruit extract, Sea water, Hydrolyzed gardenia florida extract, Magnesium ascorbyl phosphate, Allantoin, Glycerin, Citric acid, Potassium sorbate, Sodium benzoate, Maltodextrin, Lonicera caprifolium flower extract, Rosa damascena flower extract

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Bluemercury
$38.00
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Sources cited in this review

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

  1. 1
    Stability, transdermal penetration, and cutaneous effects of ascorbic acid and its derivativesncbi.nlm.nih.gov
  2. 2
    Topical L-ascorbic acid: percutaneous absorption studiesncbi.nlm.nih.gov
  3. 3
    Profile of wound healing process induced by allantoinscielo.br
  4. 4
    Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
  5. 5
    VOLATILE CONSTITUENTS FROM THE FLOWERS OF TWO SPECIES OF HONEYSUCKLE ( LONICERA JAPONICA AND LONICERA CAPRIFOLIUM )semanticscholar.org
Osea Malibu Sea Vitamin Boost
Osea MalibuSea Vitamin Boost
Buy at Bluemercury$38.00Amazon

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

Buy at Bluemercury$38.00Amazon

As an Amazon Associate, WIMJ earns from qualifying purchases.