Dr. K
Doctor K C Control Repair Serum, 30ml (Relaxing Herb)
Doctor K C Control Repair Serum, 30ml (Relaxing Herb)
A drop of gold for adult pores*. *Pores: caused by dryness
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• Authenticity guaranteed.
• Ships direct from Japan in 3-5 days
• Custom duties & tariffs fully handled by us for US customers.
• Track your order via USPS, Royal Mail, Canada Post, Australia Post.
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What it is
A golden drop for adult pores.Introducing a vitamin C serum specializing in pores and anti-aging care, an evolved beauty skin formula.Seven years have passed since the release of the Control Essence, which was developed to address various pore problems, focusing on sebum, the main cause of enlarged pores regardless of age.To thoroughly address pore problems that deepen with age, we have incorporated on-site knowledge, and four years after conception, we have overcome stability issues and evolved into the latest formula.5 times the fast-acting vitamin C derivative
Ingredients
Water, Butylene Glycol, Magnesium Ascorbyl Phosphate, Glycerin, Potassium Citrate, Pentylene Glycol, Betaine, Dihydroniacinamide Riboside, Acetyl Tri-t-Butyltryptophan, Palmitoyl Tripeptide-5, Retinol Palmitate, Glucosyl Hesperidin, Riboflavin Sodium Phosphate, Sodium Tocopheryl Phosphate, Tocopheryl Acetate, Pyridoxine HCl, Cyanocobalamin, Glutathione, Glycine, Caffeine, Dipotassium Glycyrrhizate, Cysteine/Oligomeric Proanthocyanidin, Can Elephant Root Extract, Mandarin Orange Peel Extract, Artichoke Leaf Extract, Centella Asiatica Extract, Geranium Robusta Extract, Tea Leaf Extract, Polygonum Cuspidatum Root Extract, Scutellaria Baicalensis Root Extract, Bilberry Leaf Extract, Chamomile Flower Extract, Rosemary Leaf Extract, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate, 1,2-Hexanediol, Chitosan, Sodium Poly-γ-Glutamate, PVP, Corn Oil, PEG-60 Hydrogenated Castor Oil, Cetearyl Glucoside, Hydroxyethylcellulose, Sodium Alginate, Tea Tree Leaf Oil, Lavender Oil
How to use
Take an appropriate amount (2-4 pumps) into the palm of your hand and apply it to your skin immediately after washing your face. Apply it to your entire face and leave it for about 30 seconds, allowing the serum to penetrate the stratum corneum before applying lotion. You can also use it around the eyes and neck, where signs of aging are a concern.
We ship internationally from Japan!
Frequently Asked Questions
Are the products you sell authentic?
Authenticity is 100% guaranteed. We source directly from the brand, or from official stores within Japan.
All products are fresh off the shelves and never outdated.
What are your shipping rates?
On orders under US$75, shipping is a flat US$20 to the United States and US$10 to all other countries.
Orders of US$75 or more ship free, applied automatically at checkout. Your exact shipping cost is shown before you pay.
How long does delivery take?
These estimates are for International Airmail (Tracked) and include 3 to 5 business days of processing in Japan.
- United States: 12 to 15 business days
- Canada, United Kingdom, France, Germany: 9 to 12 business days
- Australia, New Zealand, Denmark, Finland, India, Indonesia, Italy, Netherlands, Spain, Sweden, Switzerland: 10 to 13 business days
- China, Hong Kong, Malaysia, Singapore, South Korea, Taiwan, Thailand, Vietnam: 8 to 10 business days
- Rest of the world: 11 to 18 business days
Actual delivery can be affected by customs clearance, seasonal congestion, or carrier delays in the destination country, all of which are outside our control.
Do you offer express shipping?
Yes. As of 22 July 2026, we offer International Express Mail through Japan Post. The cost is based on order weight and is calculated automatically at checkout.
Will I pay customs or import fees?
US orders: No. As of July 1, 2026, all US orders ship DDP (duties delivered prepaid), meaning we prepay all import duties on our end. Nothing is due at your door.
Orders outside the US: Possibly. Duties and import taxes are set by your local customs authority and are not collected at checkout, so any charges on delivery are your responsibility.
We're working on rolling out prepaid duties for more countries soon.
It does sting a little, but it doesn't cause any redness or other issues on the skin. I'm concerned about my pores, so I'm hoping to continue using it and see results.
I received this as a gift from Suzykirei. I was looking forward to using this product, as I have concerns about sagging and enlarged pores due to aging, but even after using the whole bottle, I didn't notice any notable effects. I've been using ABC-G Repair Serum regularly, which has plumped up my skin and has helped with my pores, so I'll continue to use that as a treatment. The product itself was easy to use, even for my dry, sensitive skin, without any irritation.
I used up the whole bottle. I felt some effect from the beginning, but I used it up in a month, so considering the price, I didn't buy it again. Even if it's good, I felt that it would be difficult to continue using it if it was expensive.
I used up the whole bottle. I felt some effect from the beginning, but I used it up in a month, so considering the price, I didn't buy it again. Even if it's good, I felt that it would be difficult to continue using it if it was expensive.
I use this as my morning serum. My pores haven't gotten any bigger, but since I started using it every day, I feel like my skin is smoother and less prone to irritation overall. When I first apply it, it feels sticky and glides over my skin, but once I've spread it all over my face, exactly two pumps are absorbed (it stops spreading). I'm happy with how it feels, and since I don't have a place to add vitamin C to my other skincare products right now, I think I'll definitely be repurchasing it.