Notice Regarding Revised “Precautions for Use” for Products Containing Cysteamine

Our cystamine-containing products (see table below for applicable products) will have their labeling revised to align with the updated usage precautions in the Japan Permanent Wave Solution Manufacturers Association's “Voluntary Standards for Rinse-Off Hair Setting Agents,” effective July 12, 2024.

This revision follows the designation of cysteamine hydrochloride as an active pharmaceutical ingredient, making its inclusion in cosmetics prohibited under cosmetic standards. However, following discussions between the Japan Permanent Wave Solution Manufacturers Association and the Ministry of Health, Labour and Welfare, cysteamine hydrochloride remains permissible for use in “hair setting agents that are used only on hair and are rinsed out.” Therefore, our products can continue to be used as before.

Regarding the label changes, the main additions are: 【Precautions for Eye Contact】【Precautions Regarding Glove Use】【Conducting a Patch Test】. The 【Conducting a Patch Test】 requirement, in particular, has been added to further enhance safety considerations. These measures prioritize product safety and user health above all else, and we will continue striving to improve product safety going forward.

Therefore, for the applicable products in question, we kindly ask that you observe the newly added precautions below, in addition to the existing usage instructions currently displayed on the product, when using them.

Newly Added Notes

• (1) Avoid getting this product or the rinsing solution in your eyes. If it gets in your eyes, immediately rinse thoroughly with water or lukewarm water and seek immediate medical attention from an ophthalmologist.
• (2) Wear gloves to protect your hands and avoid direct contact with this product. If this product gets on your hands, wash it off immediately.
• (3) Do not use if any of the following apply:
  • ・You have previously experienced an allergic reaction to products containing cystamine or its salts, including this product.
  • ・You experienced skin abnormalities during a skin allergy test (patch test).

Precautions Before Use

Always perform a skin allergy test (patch test) following the steps below at least 48 hours before each use. Observe the test site twice: approximately 30 minutes after application and again after 48 hours.

• (a) Apply a thin layer of this product to the inner side of your arm, about the size of a 10-yen coin, and allow it to dry naturally.
• (b) Leave it untouched for 48 hours. Do not cover the applied area with a bandage or similar item.
• (c) If any skin abnormalities such as a rash, redness, itching, blisters, or irritation occur at the application site, do not rub it with your hands or otherwise. Immediately wash it off and discontinue use. If you experience similar skin abnormalities at any time before the 48 hours are up, stop the test immediately, wash off the product, and discontinue use.
• (d) If no abnormalities occur after 48 hours, you may proceed with use.

Product Labeling Change Target Products

Idea N Lotion

Idea N Cream

Curling motion

We will be gradually updating the usage instructions and other information displayed on the above products. We appreciate your understanding.

【Contact for Inquiries Regarding This Matter】
Happiness Co., Ltd.
TEL: 03-3984-2073
(9:00 AM to 6:00 PM, Monday through Friday excluding holidays and year-end/New Year holidays)