Launched on Mother's Day: 'HugSkin C10 All-in-one Serum,' an all-in-one serum for mothers raising small children
M’stime Co., Ltd. has launched 'HugSkin C10 All-in-one Serum' on Mother's Day, May 10, 2026, targeting mothers raising small children. This all-in-one serum is Japan's first to simultaneously blend 10% high-concentration raw Vitamin C and next-generation retinol 'Hyretin.'
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- 📰 Published: May 11, 2026 at 20:00
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HugSkin C10 ALL IN SERUM
M’stime Co., Ltd. (Headquarters: Shibuya-ku, Tokyo; Representative Director: Taichi Yamamoto) launched 'HugSkin C10 ALL IN SERUM,' an all-in-one serum from the skincare brand 'HugSkin,' which supports mothers raising small children, on Mother's Day, Sunday, May 10, 2026.
HugSkin is a skincare brand born with the concept, 'Care for your skin with love, as if hugging your child.'
After having children, one's own needs often take a backseat.
But truly, one wants personal time and to properly take care of oneself.
HugSkin aims to deliver skincare that allows busy mothers, who harbor such feelings, to not compromise on beauty even amidst their hectic lives.
HugSkin C10 All-in-one Serum was born from this desire.
It combines the roles of toner, serum, and milky lotion into one, while incorporating beauty ingredients such as 10% high-concentration raw Vitamin C*1, next-generation retinol 'Hyretin'*2, Niacinamide, and PDRN*4.
We aimed for an all-in-one serum where one thinks, 'This is it!' rather than 'This is fine.'
HugSkin, born with the concept: 'Care for your skin with love, as if hugging your child.'
Development Background
Even in days when self-care takes a backseat, we want to deliver time to cherish oneself.
Life changes significantly after childbirth and childcare.
Even those who once enjoyed elaborate skincare routines with toner, serum, milky lotion, and cream find their self-care time severely limited once daily life with small children begins.
Mornings are rushed with preparations, and evenings are exhausting after putting children to sleep.
Though one truly wants to take proper care, self-care often gets postponed.
HugSkin's aim is not merely 'time-saving.'
It's about providing a skincare moment where one feels, 'I properly took care of myself,' without adding extra steps.
We want you to gently touch your skin, as if holding your child.
We want to deliver even a few seconds of time where you can return to yourself.
With these thoughts, HugSkin was born.
Features of HugSkin C10 All-in-one Serum
1. Japan's First*3 simultaneous formulation of 10% high-concentration raw Vitamin C*1 × next-generation retinol*2 'Hyretin'
HugSkin C10 All-in-one Serum is Japan's first*3 serum that simultaneously combines 10% high-concentration raw Vitamin C*1 and the next-generation retinol ingredient 'Retinoyl Hyaluronate Na (Hyretin).'
Generally, water-soluble Vitamin C and oil-soluble retinol are said to be unstable when combined simultaneously.
HugSkin adopted Retinoyl Hyaluronate Na (Hyretin) to achieve a formulation that integrates Vitamin C and retinol components into one product.
It aims for a skin impression with transparency, firmness, radiance, and refined texture due to moisture.
Japan's First*3 simultaneous formulation of 10% high-concentration raw Vitamin C and next-generation retinol ingredient 'Hyretin.'
Basis of 'Japan's First'*3 Claim
The 'Japan's First'*3 claim for this product is based on the results of a survey conducted by Future Trend Research Institute Co., Ltd., a third-party organization.
The institute surveyed the Japanese domestic market and intellectual property information for 'serums' containing 'Ascorbic Acid (raw Vitamin C) 10%' and 'Retinoyl Hyaluronate Na (Hyretin)' from October 14, 2025, to October 22, 2025.
The survey confirmed public information from J-PlatPat, J-GLOBAL, Espacenet, WIPO, and J-STAGE, in addition to market research.
As a result, HugSkin C10 ALL IN SERUM was confirmed to be Japan's first*3 serum meeting the applicable conditions.
Certificate Number: No. 333710013
2. Galactomyces Culture Solution used instead of water
HugSkin C10 All-in-one Serum uses Galactomyces culture solution as a base, without adding purified water.
Galactomyces culture solution is a fermented skin-conditioning ingredient that supports a moisturized, radiant, and refined skin texture.
We focused on a design that condenses luxury into one product, while simplifying daily care.
Galactomyces culture solution used instead of water, condensing luxury into one product.
3. Airless pump bottle for easy one-handed use
The container uses an airless pump bottle.
The structure that minimizes air exposure ensures the freshness of delicate beauty ingredients.
No need to open and close the lid, making it easy to use with one hand, even during morning preparations.
M’stime Co., Ltd. (Headquarters: Shibuya-ku, Tokyo; Representative Director: Taichi Yamamoto) launched 'HugSkin C10 ALL IN SERUM,' an all-in-one serum from the skincare brand 'HugSkin,' which supports mothers raising small children, on Mother's Day, Sunday, May 10, 2026.
HugSkin is a skincare brand born with the concept, 'Care for your skin with love, as if hugging your child.'
After having children, one's own needs often take a backseat.
But truly, one wants personal time and to properly take care of oneself.
HugSkin aims to deliver skincare that allows busy mothers, who harbor such feelings, to not compromise on beauty even amidst their hectic lives.
HugSkin C10 All-in-one Serum was born from this desire.
It combines the roles of toner, serum, and milky lotion into one, while incorporating beauty ingredients such as 10% high-concentration raw Vitamin C*1, next-generation retinol 'Hyretin'*2, Niacinamide, and PDRN*4.
We aimed for an all-in-one serum where one thinks, 'This is it!' rather than 'This is fine.'
HugSkin, born with the concept: 'Care for your skin with love, as if hugging your child.'
Development Background
Even in days when self-care takes a backseat, we want to deliver time to cherish oneself.
Life changes significantly after childbirth and childcare.
Even those who once enjoyed elaborate skincare routines with toner, serum, milky lotion, and cream find their self-care time severely limited once daily life with small children begins.
Mornings are rushed with preparations, and evenings are exhausting after putting children to sleep.
Though one truly wants to take proper care, self-care often gets postponed.
HugSkin's aim is not merely 'time-saving.'
It's about providing a skincare moment where one feels, 'I properly took care of myself,' without adding extra steps.
We want you to gently touch your skin, as if holding your child.
We want to deliver even a few seconds of time where you can return to yourself.
With these thoughts, HugSkin was born.
Features of HugSkin C10 All-in-one Serum
1. Japan's First*3 simultaneous formulation of 10% high-concentration raw Vitamin C*1 × next-generation retinol*2 'Hyretin'
HugSkin C10 All-in-one Serum is Japan's first*3 serum that simultaneously combines 10% high-concentration raw Vitamin C*1 and the next-generation retinol ingredient 'Retinoyl Hyaluronate Na (Hyretin).'
Generally, water-soluble Vitamin C and oil-soluble retinol are said to be unstable when combined simultaneously.
HugSkin adopted Retinoyl Hyaluronate Na (Hyretin) to achieve a formulation that integrates Vitamin C and retinol components into one product.
It aims for a skin impression with transparency, firmness, radiance, and refined texture due to moisture.
Japan's First*3 simultaneous formulation of 10% high-concentration raw Vitamin C and next-generation retinol ingredient 'Hyretin.'
Basis of 'Japan's First'*3 Claim
The 'Japan's First'*3 claim for this product is based on the results of a survey conducted by Future Trend Research Institute Co., Ltd., a third-party organization.
The institute surveyed the Japanese domestic market and intellectual property information for 'serums' containing 'Ascorbic Acid (raw Vitamin C) 10%' and 'Retinoyl Hyaluronate Na (Hyretin)' from October 14, 2025, to October 22, 2025.
The survey confirmed public information from J-PlatPat, J-GLOBAL, Espacenet, WIPO, and J-STAGE, in addition to market research.
As a result, HugSkin C10 ALL IN SERUM was confirmed to be Japan's first*3 serum meeting the applicable conditions.
Certificate Number: No. 333710013
2. Galactomyces Culture Solution used instead of water
HugSkin C10 All-in-one Serum uses Galactomyces culture solution as a base, without adding purified water.
Galactomyces culture solution is a fermented skin-conditioning ingredient that supports a moisturized, radiant, and refined skin texture.
We focused on a design that condenses luxury into one product, while simplifying daily care.
Galactomyces culture solution used instead of water, condensing luxury into one product.
3. Airless pump bottle for easy one-handed use
The container uses an airless pump bottle.
The structure that minimizes air exposure ensures the freshness of delicate beauty ingredients.
No need to open and close the lid, making it easy to use with one hand, even during morning preparations.