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Cos De BAHA Tranexamic Acid 15% Serum
Cos De BAHA

Cos De BAHA Tranexamic Acid 15% Serum

Efficacy100/100IrritancyLow
See all ingredients

Works for

Moisturizing
Panthenol, Tranexamic acid + 5 more
Works well
What the product description says
“Ideal for achieving a clearer, brighter, and hydrated complexion while addressing uneven tone.”
Source: N/A

This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": hydrolyzed hyaluronic acid, sodium hyaluronate.

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).

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

PanthenolHero· HumectantEffect: HighHelps attract water to the upper layer of the skin and can help improve skin barrier function~1.7–2.5%
Tranexamic acidKey activeEffect: HighAn amino acid that is effective in reducing hyperpigmentation and evening out the skin tone. It can also help in skin barrier recovery. It is used to treat melasma, especially with injections and when taken orally~7.4–11.1%
GlutathioneKey activeEffect: HighA peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skin~1.4–2%
Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.55–1.3%
Hydrolyzed hyaluronic acidKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin~0.45–1%
Camellia sinensis leaf extractEffect: Low, below effective doseCan 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~0.1–0.5%
AllantoinUnder-dosedHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.95–1.45%
Evens skin tone
Tranexamic acid, Glutathione + 1 more
Works well
What the product description says
“It targets hyperpigmentation for a more even complexion.”
Source: N/A

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: glutathione, tranexamic acid

Keep in mind that you would need to apply any topical skincare targetted at hypigmentation consistently for a couple of months to get a result. No topical skincare product can help get rid of hyperpigmentation (including post-acne marks and age spots) instantly.

Tranexamic acidKey activeEffect: HighAn amino acid that is effective in reducing hyperpigmentation and evening out the skin tone. It can also help in skin barrier recovery. It is used to treat melasma, especially with injections and when taken orally~7.4–11.1%
GlutathioneKey activeEffect: HighA peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skin~1.4–2%
Camellia sinensis leaf extractEffect: Low, below effective doseCan 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~0.1–0.5%
Anti-oxidation
Not advertised by the brand · Glutathione, Sambucus nigra flower extract + 1 more
Works well

This product contains antioxidants (glutathione) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).

GlutathioneKey activeEffect: HighA peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skin~1.4–2%
Sambucus nigra flower extractEffect: LowA plant extract that might help neutralize free radicals in skin~0.1–0.3%
Camellia sinensis leaf extractUnder-dosedCan 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~0.1–0.5%
Anti-aging
Not advertised by the brand · Camellia sinensis leaf extract
May help

This product contains glutathione. This ingredient help neutralize free radicals in skin. By doing so, they might be able to prevent early signs of aging (like fine lines and wrinkles), at least to some extent. These ingredients will not be able to "reverse" signs of aging.

Camellia sinensis leaf extractEffect: Low, below effective doseCan 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~0.1–0.5%

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
Sambucus nigra flower extractA plant extract that might help neutralize free radicals in skinHigh~0.1–0.3%est.
1,2-hexanediolA preservativeMedium~1.6–2.4%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~2.2–3.3%est.
GlutathioneA peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skinMedium~1.4–2%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged
Alternatives
The closest match we found
Rice Serum
I'm from Rice Serum
Closest match59% match
$11.70
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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
Tranexamic acid~7.4–11.1%
Key active
Irritation risk
Low
Works for
MoisturizingEvens skin tone

An amino acid that is effective in reducing hyperpigmentation and evening out the skin tone. It can also help in skin barrier recovery. It is used to treat melasma, especially with injections and when taken orally

More about Tranexamic acid
Propanediol~3.7–5.6%
Formula
Irritation risk
Low

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

More about Propanediol
1,2-hexanediol~1.6–2.4%
Irritant · medium
Irritation risk
Medium

A preservative

More about 1,2-hexanediol
Citric acid~2.2–3.3%
Irritant · medium
Irritation risk
Medium

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

More about Citric acid
Panthenol~1.7–2.5%
Hero · Moisturizing
Irritation risk
Low
Works for
Reduces rednessMoisturizingReduces irritation

Helps attract water to the upper layer of the skin and can help improve skin barrier function

More about Panthenol
Glutathione~1.4–2%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Anti-oxidationMoisturizingEvens skin tone

A peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skin

More about Glutathione
Allantoin~0.95–1.45%
Under-dosed
Irritation risk
Low
Works for
MoisturizingAnti-inflammatoryAnti-blemishReduces rednessReduces irritationExfoliation

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

More about Allantoin
Sodium hyaluronate~0.55–1.3%
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
Hydrolyzed hyaluronic acid~0.45–1%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. A version of it is naturally present in skin

More about Hydrolyzed hyaluronic acid
Polysorbate 20~0.3–0.7%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Polysorbate 20
Camellia sinensis leaf extract~0.1–0.5%
Under-dosed
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
Sambucus nigra flower extract~0.1–0.3%
Irritant · high
Irritation risk
High
Works for
Anti-inflammatoryAnti-oxidation

A plant extract that might help neutralize free radicals in skin

More about Sambucus nigra flower extract
Momordica charantia fruit extract~0.05–0.25%
Formula
Irritation risk
Low
More about Momordica charantia fruit extract
Leontopodium alpinum extract~0.05–0.2%
Formula
Irritation risk
Low
More about Leontopodium alpinum extract
Ingredient list view

Water, Tranexamic acid, Propanediol, 1,2-hexanediol, Citric acid, Panthenol, Glutathione, Allantoin, Sodium hyaluronate, Hydrolyzed hyaluronic acid, Polysorbate 20, Camellia sinensis leaf extract, Sambucus nigra flower extract, Momordica charantia fruit extract, Leontopodium alpinum extract

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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
Cos De BAHATranexamic Acid 15% SerumYOUR PRODUCTI'm fromRice SerumNaturiumTranexamic Topical Acid 5%BIODANCEPore tightening collagen ampoule
Match—59%58%57%
Price—$11.70$20.00$34.32
Shared key ingredients—6 of 83 of 84 of 8
Key difference—MadecassosideNiacinamideNiacinamide
Irritancy Low Low Low Low
Drying alcohol————
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Product summary

"Cos De BAHA - Tranexamic Acid 15% Serum" is effective for: Moisturizing and Evens skin tone

This product could be helpful for: Anti-aging, but its actives are not the most effective or are not well-studied.

Ingredient callouts

  • Panthenol (pro-vitamin B5) at about 1.70% - 2.50% concentration. In this concentration, Panthenol works effectively to improve the skin barrier and reduce inflammation.
  • In addition, this product contains Allantoin (0.95% - 1.45%). Allantoin is helpful in wound-healing and can help restore the skin barrier faster. It might also be able to improve scars, but the evidence is not very strong for this.
  • Humectants (hydrolyzed hyaluronic acid 0.45% - 1.00%, sodium hyaluronate 0.55% - 1.30% and panthenol 1.70% - 2.50%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 17 studies and safety reviews.

  1. 1
    Effect of tranexamic acid on melasma: a clinical trial with histological evaluationonlinelibrary.wiley.com
  2. 2
    Tranexamic acid accelerates skin barrier recovery and upregulates occludin in damaged skinonlinelibrary.wiley.com
  3. 3
    The amelioration effect of tranexamic acid in wrinkles induced by skin drynesssciencedirect.com
  4. 4
    Efficacy and possible mechanisms of topical tranexamic acid in melasmaonlinelibrary.wiley.com
  5. 5
    The influence of alkane chain length on the skin irritation potential of 1,2-alkanediolsncbi.nlm.nih.gov
  6. 6
    Skin moisturizing effects of panthenol-based formulationspdfs.semanticscholar.org
Cos De BAHA Tranexamic Acid 15% Serum
Cos De BAHATranexamic Acid 15% Serum
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Find on Amazon

As an Amazon Associate, WIMJ earns from qualifying purchases.