The following warnings and cautions are listed in an immediately visible part of the instruction leaflet

• Please read the entire instruction leaflet carefully before using. Always use the product correctly.
• Hair coloring products may can cause severe allergic reaction in rare cases.
• Perform a skin allergy test (patch test) every time before coloring your hair.
• Never use this product if you have ever developed an allergic reactions after coloring your hair.

If you unfold the instruction leaflet, you can find the warnings and cautions, instruction for use, and more.

• Warnings and cautions for use
  These differ depending on the type of product.
  Warnings and cautions for oxidative hair dyes and non-oxidative hair dyes (Click here to learn more)
  Warnings and cautions for hair bleaching agents/dye removers (Click here to learn more)
• Skin allergy test instructions
• Preparations before use
• Instruction for use

Warnings and cautions for oxidative hair dyes and non-oxidative hair dyes

Do not use this product if you have ever experienced the following

• If you have ever had an allergic reaction after coloring your hair, including but not limited to this product.
• If you have ever experienced hives (itching, rash, redness) or felt ill (shortness of breath, dizziness, etc.) during or immediately after coloring your hair
• If you have ever experienced any skin reactions after having a skin allergy test (patch test).
• If you have a sensitive scalp or skin (if you have an illness, are recovering from an illness, are menstruating, pregnant, etc.)
• If you have a swelling, a wound, or a skin disease on your head, face, or neck
• If you have a pre-existing kidney disease, blood disorder, etc.
• If you have persistent symptoms indicating poor physical condition (low fever, fatigue, palpitations, shortness of breath, purpura, bleeding easily, excessive menstrual or other bleeding, etc.).

Warnings and cautions before use

• Perform a skin allergy test (patch test) two days (48 hours) every time before coloring your hair by following the steps below. A skin allergy test is a test to check whether your body will develop an allergic reactions when you color your hair. The test area should be observed twice, about 30 minutes after application of the test solution and 48 hours later. Even if you have colored your hair without experiencing any reactions in the past, you may develop an allergic reaction due to changes in your body. Perform a test every time before coloring your hair.
  • Mix the 1st and 2nd agents at the ratio specified in the instruction leaflet to make several drops of the test solution.
  • When the test solution is ready, apply it to the underside of your arm in an area the size of a 10 yen coin and let it dry naturally (if the applied area does not dry after 30 minutes, wipe it off gently with tissue paper.).
  • Do not touch the test area and leave it for 48 hours (be sure to watch the time carefully). Do not cover the area where the test solution is applied with a bandage.
  • If you experience any skin reaction such as a rash, redness, itching, blisters, or irritation in the applied area, do not rub the skin with your hands. Immediately wash the area off and do not color your hair. If you experience similar skin reactions sometime before the 48 hours is over, stop the test immediately and wash off the test solution. Do not color your hair with the product.
  • If you have not experienced any reactions after 48 hours, you can color your hair.
• Only use on the hair on your head. This product is intended for use on the hair on your head only.
• Do not use to color eyebrows or eyelashes. There is a risk that the coloring mixture may get into your eyes.
• Do not color your hair immediately after shaving your face. Your skin may be damaged and easily irritated.
• Do not apply a permanent wave product for a week before or after coloring your hair. It may damage the hair or cause the color to fade.

Warnings and cautions at the time of use

• The coloring mixture should be prepared right before use.
• Color your hair in a well-ventilated area.
• Be sure to wear the gloves that come with the product.
• Do not take a bath while coloring your hair. Do not wet your hair before applying. There is a risk that the coloring mixture may get into your eyes due to sweat or dripping.
• Do not allow the coloring mixture to come into contact with your face or neck. If it does, immediately rinse off the area with water.
• Protect your eyes from the coloring mixture and the rinse water. Getting either in your eyes may cause severe pain, and in some cases may damage your eyes (inflammation of the cornea, etc.). In the unlikely event that it gets in your eyes, do not rub your eyes. Immediately rinse thoroughly with cold or lukewarm water for at least 15 minutes and seek medical attention from an ophthalmologist.
• If skin reactions such as a rash, redness, swelling, itching, or strong irritation occur while coloring your hair, or if you experience reactions such as hives, shortness of breath, or dizziness, thoroughly wash off the coloring mixture immediately and seek medical attention.
• If you experience any allergic reactions after coloring your hair, be sure to consult a doctor.

Warnings and cautions for handling

• Any leftover coloring mixture will become ineffective. Always rinse off and discard any leftover solution.
• Do not store the coloring mixture. Doing so is dangerous; gas is generated and may cause the container to burst.

Warnings and cautions for storage

• Keep out of reach of young children. It is dangerous if accidentally ingested.
• Keep in a cool place away from direct sunlight.

Risk of allergies due to hair coloring products

• An allergic reaction caused by hair color refers to reactions such as itching, swelling, redness, and bumps on the head, hairline, face, neck, and other areas. In some cases, you may only experience itching. Repeated use while failing to notice an allergic reaction, repeated use due to mild reactions, or reuse after reactions have subsided can be dangerous because your reactions can gradually become more severe. In rare cases, a serious allergic reaction known as anaphylaxis (generalized hives, difficulty breathing.) may occur suddenly. If you have experienced such allergic reactions, do not color your hair.

Warnings and cations for use of hair bleaching agents/dye removers

Do not use this product if you have experienced the following.

• If you have ever had an allergic reaction from this product.
• If you have a sensitive scalp or skin (if you have an illness, are recovering from an illness, are menstruating, pregnant, etc.)
• If you have a swelling, wound, or skin disease on your head, face, or neck
• If you have a pre-existing kidney disease, blood disorder, etc.

Warnings and cautions before use

• Only use on the hair on your head. This product is intended for use on the hair on your head.
• Do not use to color your eyebrows or eyelashes. There is a risk that the coloring mixture may get into your eyes.
• Do not color your hair immediately after shaving your face. Your skin may be damaged and easily irritated.
• Do not use a permanent wave product for a week before or after coloring your hair. Doing so may damage your hair.

Warnings and cautions at the time of use

• The coloring mixture should be prepared right before use.
• Color your hair in a well-ventilated area.
• Be sure to wear the gloves that come with the product.
• Do not allow the coloring mixture to come into contact with your face or neck. If it does, immediately rinse off the area with water.
• Protect your eyes from the coloring mixture and the rinse water. Getting either in your eyes may cause severe pain, and in some cases may damage your eyes (inflammation of the cornea, etc.). In the unlikely event that it gets in your eyes, do not rub your eyes. Immediately rinse thoroughly with cold or lukewarm water for at least 15 minutes and seek medical attention from an ophthalmologist.
• If you experience any allergic reactions after coloring your hair, be sure to consult a doctor.

Warnings and cautions for handling

• Any leftover coloring mixture will become ineffective. Always rinse off and discard any leftover solution.
• Do not store the coloring mixture. Doing so is dangerous; gas is generated and may cause the container to burst.

Warnings and cautions for storage

• Keep out of reach of young children. It is dangerous if accidentally ingested.
• Keep in a cool place away from direct sunlight.