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6% Hydroquinone serum 30ml

6% Hydroquinone serum 30ml

Regular price $24.80 USD
Regular price $24.80 USD Sale price $24.80 USD
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Unveil the radiance of beautiful skin


Serum with 6% Pure Hydroquinone




Paraben-free / Synthetic fragrance-free / Artificial coloring-free

/ Silicon-free / Petroleum-based alcohol-free /Petroleum-based surfactant-free / Mineral oil-free / UV absorber-free


- Proper storage of HYDRO ESSENCE -

Hydro Essence should be stored at room temperature in a dark place, out of direct sunlight. If refrigerated it may begin to crystallize.


Made in Japan


Does your skin show signs of aging?


✔︎ Can’t get by without concealer

✔︎ Looking older than your age

✔︎ Need an easier skin care routine

✔︎ Worried about dry, dull skin

✔︎ Hoping to improve skin texture





What is Hydroquinone?

A gift from nature, Hydroquinone is a well-known ingredient found in fruits and plants. Like Vitamin C, Arbutin and Kojic acid, Hydroquinone is gaining world-wide attention for its powerful anti-aging effects.




When you feel your skin is no longer beautiful

Pure Hydroquinone


There are other KISO products that use in their formulations a stabilized hydroquinone which is 30% pure hydroquinone and 70% other beauty nutrients. However, with repeated testing we were able to achieve a formula of 6% pure hydroquinone. This formula is able to penetrate more deeply into the stratum corneum.



By preventing rough skin caused by dryness, this formula adds elasticity, creates luster and a smoother skin texture.



* For night-time use only

* Be sure to use sunscreen during the day

* Do not mix with KISO Hydro Cream series

* Store in a dark place out of direct sunlight. Do not store in a refrigerator.

* Please do a patch test before using

*When applying to the entire face, it is better to mix a few drops with KISO lotion or face cream.


How to do a Patch Test

Apply a small amount to the inside of your upper arm and cover with an adhesive (band-aid) for about 24 hours.

If the area becomes red, itchy or if any abnormalities appear, please discontinue use.

If problems such as redness persist, consult a dermatologist.


Before use, please check the instructions and how much hydroquinone cream to apply.

If this product does not seem to suit your skin, discontinue use.


This product may cause rough skin and vitiligo (white spots).


Please do not use this product if you are pregnant, nursing, undergoing dermatological treatments, laser treatments, etc.


Directions for use

After applying lotion, add one or two drops only to areas of concern on your skin. It can also be mixed with lotion or face cream.



Water, Hydroquinone, Glycerin, Propanediol, Pentylene Glycol, Sodium Citrate, Sodium Metabisulfite, Hydroxyethylcellulose, Caramel, Ethylhexylglycerin, Phenoxyethanol



● Do not use on skin with damage or abnormalities, swelling, rash, etc.

● Discontinue use if you experience severe skin irritation.

● Symptoms may be aggravated with continued use. In such cases, please consult a dermatologist.

● Discontinue use if you experience any of the following skin problems.

(1) Skin irregularities such as redness, swelling, itching, irritation, discoloration (i.e.: white blotches) or skin darkening.

(2) Any of the above-mentioned skin irregularities after exposure to the sun.

● Avoid contact with eyes. If in contact with eyes, rinse immediately with cold or lukewarm water.

● Keep out of reach of children.

● Do not store in a location exposed to direct sunlight, high temperature, and/or humidity.

● This product is best if used within 3 months of opening.

● Those who are pregnant, nursing, undergoing treatment for illness or dermatological treatments, please consult with a doctor before use.

● If you experience redness or irritation, discontinue use.

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