Dr.Soie, a cutting-edge cosmetic brand born from the expertise of the renowned Hiroo Prime Dermatology clinic, serving Tokyo for over 15 years. Dr. Soie cosmetic line blends everyday therapeutic care and targeted solutions for skin concerns, crafted with the utmost standards of quality and safety.
This serum combines advanced skincare technology with powerful natural ingredients to deliver visible results. The lightweight formula absorbs quickly, working deep within the skin to improve texture, hydration, and resilience.
Key Benefits:
• Tightens and shrinks pores for a refined complexion.
• Low-Molecular Vitamin C: Penetrates deeply, stimulates collagen production, and repairs UV damage without irritation.
• Hyaluronic Acid: Boosts moisture retention and plumps the skin.
• Plant-Derived Isoflavones: Improves elasticity and strengthens the skin’s moisture barrier.
• Fullerene: A powerful antioxidant that neutralizes free radicals and enhances skin repair.
How to Use:
1. After cleansing and applying toner, take 1-2 pumps of serum.
2. Gently massage it into the skin until fully absorbed.
3. Follow with moisturizer and SPF in the morning.
Free from: silicones, alcohol, dyes, and synthetic fragrance.
Non-irritating and lightweight, suitable for sensitive skin.
Dermatologist-tested for safety and efficacy.
FAQ:
Will this help with acne scars?
Yes, vitamin C helps brighten post-acne marks and evens skin tone over time.
Can I use this with retinol?
Yes, but alternate usage to avoid irritation (e.g., Vitamin C in the morning, Retinol at night).
Is it safe for sensitive skin?
Yes, the formula is gentle and free from harsh irritants.
We ship internationally from our warehouse here in Tokyo. We use the services of third-party delivery service providers, namely, Japan Post (EMS) and Airmail, for shipping all the orders placed by our customers. View our entire policy here.
Every skin is different, therefore, no returns are accepted simply on the account that the product had an adverse reaction on your skin, or did not provide you any particular kind of results that you were expecting. However, you may initiate a return for the defective and damaged products purchased from the website within a period of7 (seven) days calculated from the order delivery date (“Return Period”). View our entire policy here.
All our brands are carefully picked and come from the most reputable clinics and manufacturers.
Best Quality
All our products come straight from the manufacturer to make sure you're getting the freshest stuff.
Fast Shipping
We only use express delivery to make sure you get your skincare goodies in the shortest time possible.
Unlike generic beauty retailers, Beauty Ninja carefully curates only the most advanced and luxurious Japanese skincare. Every product is tested and approved for its effectiveness.
Have a question?
See some of our common FAQS below
Yes! We source all products directly from Japanese brands, ensuring 100% authenticity.
In Japan, expiration dates are usually not printed on cosmetics unless required (e.g., food or medicated products). However, we keep small stocks and order directly from manufacturers to ensure you get the freshest products. Most items have a shelf life of 2–3 years when stored properly in a cool, dry place away from direct sunlight.
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Orders are packed and dispatched within 5 business days (usually much sooner). Delivery by Japan Post EMS then takes up to 7 days. Customs checks can occasionally add a few days.
Free shipping on orders of US$200 or more.
Flat rate US$15 for all other orders (shown in your currency at checkout).
Every order ships from Tokyo by Japan Post EMS, fully tracked.
We ship to over 60 countries, including the USA, UK, Australia, Canada, and most of Europe and Asia. See our shipping page for the full list.
Incredible serum, copes with all the stated tasks! I have already ordered a second one, the consumption is very economical, just one press is enough, the texture is like water, my skin absorbs it with ease! This is my love.
The serum is odourless and highly consistent, it perfectly moisturizes and refreshes my skin while evening out the complexion. The term of use is about 2 months, I've ordered again and also plan to purchase their other products.
I'm a regular in the Amaranth series, and really enjoy their products, But the serum is minimal in quantity , it barely lasted a month. I didn't even have time to understand the result. But at least in combination with the rest of the products from this series, it leaves my skin well hydrated, smooth and silky. I ordered it together with a tightening serum, I will try this one in the morning, tightening in the evening. I'll edit the review when I start to feel the difference.
I really like that the serum with such a package with a dispenser - bacteria do not get there. moisturizes well, light, I think it will suit all skin types, because even my dry skin moisturizes well
The structure is very light. It gives high-quality, light moisturizing, which sometimes I don’t even use a cream after it. The only downside is that it ends quickly
Thank you very much for your introduction to this brand. This serum is a tool that has finally helped to break the dead center of my many years of struggle with enlarged pores. Skin looks much better! It also goes well with the means of other companies, but the maximum effect when used with the means of the same line. Definitely, I will be ordering it again and again.
It moisturizes very well, absorbs quickly, I use it together with the milk of the same brand. Excellent day care. Of the minuses - it ends quickly, but I have already ordered a second one.
Not sure if it works or not. What I can note is the absence of any smell and it has a very liquid texture. It doesn't sting and is unfelt on my skin. So it's hard to recommend or not.
I have very sensitive skin, so it's not easy to find the right product. I am 35 years old. This is my first time using a serum so I have nothing to compare it to. But the results are great, my skin loves it! After about a week of use my friends noticed that my skin was radiant so I guess that means the serum is working! I like that it's odorless and not sticky. I use it in combination with a cream of the same name. I will continue to using this. Thank you!
A very worthy serum, there is no feeling of stickiness, my skin is moisturized, nourished, soft, tender ... I am very pleased with this series, it suits my normal skin perfectly.
Good serum, perfectly moisturizes and refreshes the face. Almost does not leave stickiness, sensations are pleasant after application. After the serum at night, there is not even a need to apply a cream. Due to this, there were less blackheads and oily sheen.
Face after serum-blood with milk! Very refreshing overall appearance, skin quality improves immediately. I want to have this serum in my arsenal forever)
I order this serum twice previously, it's my go-to serum for the fall. Before that, I tried vitamin C serums from other Japanese manufacturers. Settled on this one finally....I will order more!
Great serum! I use it at night and the effect is noticeable immediately after application. It removes dryness and my skin becomes fresher and smoother. The tone evens out in the morning.
Amaranth APP-C Fulla serum
Great serum! I use it at night, the effect is noticeable immediately after application. Removes dryness, my skin is fresher and smoother, tone has evened out.
Best Vitamin C Serum
I order this serum twice previously, it's my go-to serum for the fall. Before this I used vitamin C serums from other Japanese manufacturers. Settled on this one finally....I will order more!
Excellent serum
Good serum, moisturizes perfectly and evened out my skin. Does not leave stickiness, goes on well under makeup. It's so moisturizing that I sometimes don't apply cream after using at night. I noticed I have less blackheads and my pores are smaller which is a plus.
Serum
A very worthy serum, no feeling of stickiness, my skin is moisturized, nourished, soft, tender. I am very pleased with this line of products - it suits my normal skin perfectly.
This works!
I have very sensitive skin, so it's not easy to find the right product. I am 35 years old. This is my first time using a serum so I have nothing to compare it to. But the results are great, my skin loves it! After about a week of use my friends noticed that my skin was radiant so I guess that means the serum is working! I like that it's odorless and not sticky. I use it in combination with a cream from the same brand. I will continue to using this. Thank you!
Serum
Not sure if it works or not. What I can note: the absence of any smell (unusual, usually there is a smell), very liquid texture (as if it were water), does not sting, not felt on my skin. So it's hard to recommend or not.
excellent
It moisturizes very well and absorbs quickly. I use it together with the milk of the same line. Excellent day care. Of the minuses - it ends quickly but I have already ordered a second one.
Wonderful!
Thank you very much for your introduction to this brand. This serum has finally helped to break the curse of my many years of struggle with enlarged pores. My skin looks much better! It also goes well with other products from different brands, but I've noticed the best results when I switched to using the full line. I will be ordering this foreever PLEASE DON'T STOP STOCKING IT.
Amaranth APP-C Fulla serum
The structure is very light. High-quality with light moisturizing and I don't have dry skin so I don't use a moisturizer after it. The only downside is the small size.
hydration
I like the dispenser because it doesn't risk bacteria being transferred to my face. Moisturizes well, light, I think it will suit all skin types because even my dry skin like it!
