Kansosan Medicated Deep Moisturizing Toner, 230ml

(1) Heparin-Like Substance actively restores moisture retention in dry, barrier-weakened skin
(2) Nanocapsule complex delivers active ingredients deeper for more sustained hydration
(3) 6-free formula — no petroleum surfactants, parabens, tar dyes, synthetic fragrance, alcohol, or silicone

There is a specific kind of skin situation this toner was made for: tight after cleansing, prone to rough patches, uncomfortable in cold or windy weather, and easily upset by stress. Kansosan is a BCL brand built around one core conviction — that most skin problems start with dryness — and the Medicated Deep Moisturizing Toner is the most concentrated hydration product in the line. Its standout ingredient is Heparin-Like Substance (ヘパリン類似物質), a medicated moisturiser well-known in Japanese pharmacology for its ability to restore water retention in compromised skin. Alongside it, human-identical ceramide (N-Stearoyl Dihydrosphingosine) reinforces the lipid barrier from within, while a nanocapsule delivery system uses a Vitamin E derivative to encapsulate a Vitamin B6 derivative and carry it deeper into the skin. The texture has a gentle, slip-forward viscosity — not watery, not gel-heavy — that spreads easily and absorbs without a sticky finish. Fragrance-free, alcohol-free, silicone-free, and paraben-free, with allergy-patch testing completed. This is the toner for anyone who has tried "gentle" and still finds their skin reacting — and wants something that actually addresses the root cause rather than masking it.

(1) Heparin-Like Substance (Active): a medicated moisturising agent that improves water retention and helps repair skin roughness
(2) Dipotassium Glycyrrhizate (Active): soothes sensitivity and helps prevent skin inflammation and breakouts
(3) N-Stearoyl Dihydrosphingosine (Human-Identical Ceramide): reinforces the lipid barrier and reduces moisture loss from the skin's surface
(4) L-Arginine (Amino Acid): supports the skin's natural moisturising factor and adds a soft, plumped texture after absorption
(5) Vitamin E Derivative / Vitamin B6 Derivative Nanocapsule: a proprietary delivery system that carries active ingredients to deeper skin layers for longer-lasting hydration

Heparinoid*, dipotassium glycyrrhizinate*, purified water, 1,3-propanediol, concentrated glycerin, α-olefin oligomer, sodium dilauramidoglutamide lysine solution, carboxyvinyl polymer, phenoxyethanol, xanthan gum, potassium hydroxide, 1,2-pentanediol, pyridoxine dicaprylate, sodium dl-α-tocopheryl phosphate, petrolatum, sugar squalane, L-arginine, hydrogenated soybean phospholipid, phytosterol, N-stearoyldihydrosphingosine, water-soluble Centella asiatica extract, polyoxyethylene octyldodecyl ether, vegetable squalane, sodium hyaluronate (2) * indicates active ingredients, unlabeled indicates other ingredients

After cleansing, dispense an appropriate amount — roughly a 500-yen coin sized measure — into the palm of the hand. Press into the face using both palms rather than sweeping with a cotton pad, working from the centre outward and holding briefly to encourage absorption. For areas that feel particularly dry or rough, go back with a second layer before moving on. Follow with a moisturiser or cream to seal the hydration in. Suitable for both morning and evening use.

Q: What is Heparin-Like Substance and why is it in the Kansosan Medicated Deep Moisturizing Toner?
A: Heparin-Like Substance (ヘパリン類似物質) is a medicated active ingredient widely used in Japanese dermatology and pharmacy for its ability to restore water-holding capacity in dry, rough, or barrier-compromised skin. Unlike standard cosmetic humectants that simply attract surface moisture, it works by improving the skin's own capacity to retain hydration. It is listed as an active ingredient in this product, meaning its inclusion is held to quasi-drug regulatory standards in Japan.
Q: How does the Kansosan Medicated Deep Moisturizing Toner differ from the Kansosan Medicated Moist Lotion in the same range?
A: The two products target different levels of concern within the same dry-skin category. The Medicated Deep Moisturizing Toner (高保湿化粧水) focuses specifically on barrier restoration and intensive moisture retention, with Heparin-Like Substance as its lead active. The Medicated Moist Lotion (薬用しっとり化粧液) is an all-in-one formula that layers in brightening and anti-wrinkle actives (Niacinamide) alongside moisturising. The toner is the better choice when barrier repair and deep hydration are the primary goal.
Q: Is the Kansosan Medicated Deep Moisturizing Toner suitable for sensitive or reactive skin?
A: Yes — it is allergy and patch-tested, and formulated without petroleum surfactants, parabens, synthetic fragrance, tar dyes, alcohol, and silicone. The brand was created specifically for dry and sensitive skin. That said, as with all products, individual sensitivities can vary.
Q: Does the Kansosan Medicated Deep Moisturizing Toner need to be used with the rest of the Kansosan line?
A: No — it works well as a standalone toner within any routine. That said, using it with the matching Kansosan Medicated Deep Moisturizing Milk and Cream will give the most consistent layering of barrier-support ingredients across all steps.
Q: What is the texture of the Kansosan Medicated Deep Moisturizing Toner like?
A: It has a light, slip-forward viscosity — slightly thicker than plain water but not gel-like or heavy. It spreads easily across the face, absorbs without leaving a sticky or tacky feeling, and leaves skin with a soft, settled surface rather than a visibly dewy or glassy finish.