A highly popular limited series the previous 100 box batch sold out
Now accepting pre-orders for the next 90day aged batch, scheduled for delivery in mid February.
AIKA SOAP is the world’s first organic cow milk soap, made from the rare milk of pasture-raised Jersey cows in Japan.
It is free from hormones, antibiotics, synthetic additives, and artificial ingredients, making it suitable for sensitive skin, babies, and all ages.
Each bar is handcrafted using the traditional cold-process method and aged naturally for 90 days, allowing the vitamins, amino acids, and natural glycerin to fully mature and deliver deep hydration and a gentle cleansing experience.
Beige – Organic Beetroot (Moisture Care)
Recommended for dry and sensitive skin.
Organic beetroot from Kurashiki provides natural minerals and polyphenols that enhance skin firmness and radiance.
Shea butter, jojoba oil, and camellia oil create a rich, moisturizing finish ideal for winter dryness and delicate skin.
Green – Organic Indigo (Refreshing & Clarifying Care)
Recommended for combination and oily skin, and men's skincare.
Pesticide-free indigo from Tokushima offers antioxidant benefits that help reduce inflammation and skin oxidation.
Clay from Toyama absorbs impurities, excess oil, and buildup.
Suitable for acne care, pore cleansing, and oil balance.
“Let nature restore your skin.”
AIKA SOAP uses only natural ingredients sourced from trusted farmers across Japan.
No synthetic chemicals are used—only pure, natural elements.
Ingredients
Organic Jersey Milk & Whey (Fukuoka – Shiraki Farm × Cheese Factory TAK)
Pasture-raised Jersey cows provide nutrient-rich organic milk.
Whey, normally discarded during cheese production, is upcycled into a moisturizing ingredient rich in amino acids, lactic acid, and vitamins.
Camellia Seed Oil (Nagasaki)
A traditional Japanese beauty oil known for protecting the skin from dryness and environmental stress, leaving it soft and smooth.
Montmorillonite Clay (Toyama)
A fine natural clay that gently removes impurities and supports clear, bright skin.
Organic Beetroot – Beige Formula (Kurashiki, Okayama)
Loaded with minerals and polyphenols to maintain moisture and improve skin texture.
Indigo – Green Formula (Mima, Tokushima)
A natural antioxidant traditionally used in Japanese skincare to calm redness and support a clear complexion.
100% natural ingredients
・No synthetic surfactants
・No preservatives
・No artificial fragrance
・No artificial coloring
・Cruelty-free
・Small-batch, handcrafted production
・Safe for babies, sensitive skin, and seniors.
AIKA SOAP is packaged in partnership with a welfare-supported workshop in Fukuoka.
All wrapping and shipping are done by hand, supporting the independence and professional development of individuals with disabilities.
Your purchase contributes to a positive, community-based social cycle.
AIKA SOAP is produced using the cold-process technique, which avoids heat to preserve the natural nutrients such as glycerin, lactic acid, and vitamins.
After molding, the soap is aged for 90 days, becoming mild, long-lasting, and richly moisturizing.
Suitable for face and body.
Lather with warm water and cleanse gently.
Rinse thoroughly after use.
Can be used for baby baths and senior skincare.
Beige – Moisture Type
Whey, Olea Europaea (Olive) Fruit Oil, Cocos Nucifera (Coconut) Oil, Shea Butter, Jojoba Seed Oil, Ricinus Communis (Castor) Oil, Camellia Seed Oil, Sodium Hydroxide, Milk, Montmorillonite, Beetroot Extract, Allantoin
Green – Refreshing Type
Whey, Coconut Oil, Palm Oil, Castor Oil, Argan Kernel Oil, Camellia Seed Oil, Sodium Hydroxide, Milk, Montmorillonite Clay, Indigo Leaf/Stem Extract
Made in Japan
Manufactured by: Pirikannon Natural Cosmetics Laboratory, Fukuoka
Distributed by: Global Dairy Girl – Aika Oyama
AIKA SOAP "The World’s First" Organic Milk Soap (2Bar Boxes)
What is the cold process?
This is a manufacturing method that does not use heat during the soap manufacturing process, but instead uses natural heat to slowly mature the soap.
This manufacturing method makes it possible to create soap that is gentle on the skin because the natural ingredients and moisturizing properties contained in the ingredients are less likely to be destroyed.
Advantages of the cold process
Disadvantages of the cold process
