{"product_id":"doctor-k-c-concentrate-oil-serum-20ml","title":"Doctor K C Concentrate Oil Serum 20ml","description":"\u003ch3 dir=\"ltr\" class=\"tw-data-text tw-text-large tw-ta\"\u003eAbout Product\u003c\/h3\u003e\n\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eDoctor K C Concentrate Oil Serum 20ml\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003eDoctor K C Concentrate Oil Serum is a \u003cstrong\u003econcentrated vitamin C facial oil serum\u003c\/strong\u003e designed for skin affected by dryness and external environmental stress such as pollen. It combines vitamins A, B, C and E with \u003cstrong\u003eCaffeine, Glutathione and high-purity botanical oils\u003c\/strong\u003e to support smoother, firmer and more radiant-looking skin.\u003c\/p\u003e\n\u003cp\u003eThe lightweight oil blends smoothly without a heavy feel, helping care for \u003cstrong\u003edryness-related visible pores, dull-looking skin, excess shine and uneven texture\u003c\/strong\u003e while protecting against skin roughness. Its versatile formula can also be used on the neck, décolleté, dry body areas, scalp and hair ends.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Benefits\u003c\/h2\u003e\n\u003cp\u003e✔ Concentrated vitamin C oil serum\u003cbr\u003e✔ Contains three Vitamin C derivatives\u003cbr\u003e✔ Features vitamins A, B, C and E\u003cbr\u003e✔ Contains Caffeine and Glutathione\u003cbr\u003e✔ Helps prevent skin roughness\u003cbr\u003e✔ Targets dryness-related visible pores\u003cbr\u003e✔ Supports smoother, more refined-looking texture\u003cbr\u003e✔ Helps care for dullness caused by dryness\u003cbr\u003e✔ Supports fresh, translucent-looking radiance through hydration\u003cbr\u003e✔ Helps maintain firmness and moisture\u003cbr\u003e✔ High-purity botanical oil formula\u003cbr\u003e✔ Lightweight, smooth oil texture\u003cbr\u003e✔ Can be used on face, neck and décolleté\u003cbr\u003e✔ Multi-purpose formula for dry body areas, scalp and hair ends\u003cbr\u003e✔ Natural essential oil fragrance\u003cbr\u003e✔ Mineral oil-free\u003cbr\u003e✔ Paraben-free\u003cbr\u003e✔ Free from added colourants\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy You'll Love It\u003c\/h2\u003e\n\u003ch3\u003eThree Forms of Vitamin C\u003c\/h3\u003e\n\u003cp\u003eC Concentrate Oil Serum features three Vitamin C derivatives:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eTetrahexyldecyl Ascorbate\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTrisodium Ascorbyl Palmitate Phosphate\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMagnesium Ascorbyl Phosphate\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThey form the core of Doctor K's concentrated vitamin oil approach, complemented by vitamins A, B and E.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eA Multi-Vitamin Oil Serum\u003c\/h3\u003e\n\u003cp\u003eBeyond Vitamin C, the formula contains a broad range of vitamin ingredients:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVitamin A\u003c\/strong\u003e — Retinyl Palmitate\u003cbr\u003e\u003cstrong\u003eVitamin B1\u003c\/strong\u003e — Thiamine HCl\u003cbr\u003e\u003cstrong\u003eVitamin B3\u003c\/strong\u003e — Niacinamide\u003cbr\u003e\u003cstrong\u003eVitamin B5\u003c\/strong\u003e — Calcium Pantothenate\u003cbr\u003e\u003cstrong\u003eVitamin B6\u003c\/strong\u003e — Pyridoxine HCl\u003cbr\u003e\u003cstrong\u003eVitamin B12\u003c\/strong\u003e — Cyanocobalamin\u003cbr\u003e\u003cstrong\u003eVitamin B2\u003c\/strong\u003e — Riboflavin\u003cbr\u003e\u003cstrong\u003eVitamin E\u003c\/strong\u003e — Tocopherol\u003c\/p\u003e\n\u003cp\u003eRetinyl Palmitate is a \u003cstrong\u003evitamin A derivative and should not be confused with pure retinol\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eCaffeine + Glutathione\u003c\/h3\u003e\n\u003cp\u003eDoctor K also incorporates \u003cstrong\u003eCaffeine and Glutathione\u003c\/strong\u003e into the vitamin-rich formula.\u003c\/p\u003e\n\u003cp\u003eThese ingredients complement the serum's moisture and conditioning approach, supporting skin that looks fresh, smooth and healthy.\u003c\/p\u003e\n\u003cp\u003eThe product does not make a medicated brightening claim, so Glutathione should be understood here within the serum's cosmetic skincare positioning rather than as a treatment for pigmentation.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eCare for Skin Affected by External Stress\u003c\/h3\u003e\n\u003cp\u003eDoctor K developed the serum around what it describes as a cycle of skin roughness associated with \u003cstrong\u003eexternal stressors such as pollen and dryness\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWhen skin feels unstable due to environmental dryness, concerns such as visible pores, dullness, excess shine and uneven texture can become more noticeable.\u003c\/p\u003e\n\u003cp\u003eThe oil-rich formula helps maintain moisture and skin condition while helping prevent roughness.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eBotanical Oils Without a Heavy Feel\u003c\/h3\u003e\n\u003cp\u003eThe formula begins with \u003cstrong\u003eSqualane\u003c\/strong\u003e and includes Jojoba Seed Oil, Rosehip Oil and other oil-based ingredients.\u003c\/p\u003e\n\u003cp\u003eDespite being an oil serum, it is designed to blend smoothly and lightly into the skin rather than leaving an excessively heavy finish.\u003c\/p\u003e\n\u003cp\u003eThe result is a moisturised complexion with a fresh, supple and luminous appearance.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eNatural Essential Oil Aroma\u003c\/h3\u003e\n\u003cp\u003eThe aromatic blend uses natural essential oils including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRosehip\u003c\/li\u003e\n\u003cli\u003eLavender\u003c\/li\u003e\n\u003cli\u003eGeranium\u003c\/li\u003e\n\u003cli\u003eRosemary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe botanical aroma adds a relaxing sensory element to the skincare routine without making therapeutic or mood-treatment claims.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eSuitable For\u003c\/h2\u003e\n\u003cp\u003eDoctor K C Concentrate Oil Serum is particularly suited to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDry or moisture-depleted skin\u003c\/li\u003e\n\u003cli\u003eDryness-related visible pores\u003c\/li\u003e\n\u003cli\u003eDull-looking skin\u003c\/li\u003e\n\u003cli\u003eUneven skin texture\u003c\/li\u003e\n\u003cli\u003eExcess shine and sebum concerns\u003c\/li\u003e\n\u003cli\u003eSkin prone to roughness\u003c\/li\u003e\n\u003cli\u003eLoss of firmness\u003c\/li\u003e\n\u003cli\u003eSeasonal dryness\u003c\/li\u003e\n\u003cli\u003eSkin exposed to environmental stress such as pollen\u003c\/li\u003e\n\u003cli\u003eThose looking for vitamin-rich facial oil care\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt can also be used for \u003cstrong\u003edry elbows, heels, scalp and hair ends\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTexture\u003c\/h2\u003e\n\u003cp\u003eA \u003cstrong\u003elightweight botanical oil serum\u003c\/strong\u003e that spreads smoothly and absorbs comfortably into the skin.\u003c\/p\u003e\n\u003cp\u003eIt provides concentrated oil-based moisture without an overly heavy feel, leaving skin looking supple, smooth and radiant.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFormula Highlights\u003c\/h2\u003e\n\u003ch3\u003eVitamin C Derivatives\u003c\/h3\u003e\n\u003cp\u003eTetrahexyldecyl Ascorbate, Trisodium Ascorbyl Palmitate Phosphate and Magnesium Ascorbyl Phosphate provide a three-form Vitamin C approach.\u003c\/p\u003e\n\u003ch3\u003eRetinyl Palmitate\u003c\/h3\u003e\n\u003cp\u003eA vitamin A derivative incorporated into the multi-vitamin formula. It is \u003cstrong\u003enot pure retinol\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eNiacinamide\u003c\/h3\u003e\n\u003cp\u003eVitamin B3 and part of Doctor K's vitamin-focused formula.\u003c\/p\u003e\n\u003ch3\u003eCaffeine\u003c\/h3\u003e\n\u003cp\u003eA key ingredient highlighted by Doctor K alongside the vitamin complex.\u003c\/p\u003e\n\u003ch3\u003eGlutathione\u003c\/h3\u003e\n\u003cp\u003eIncluded as a key ingredient within the serum's moisture-focused skincare formula.\u003c\/p\u003e\n\u003ch3\u003eSqualane \u0026amp; Botanical Oils\u003c\/h3\u003e\n\u003cp\u003eSqualane, Jojoba Seed Oil and Rosehip Oil help moisturise and condition dry skin while supporting a smooth, supple feel.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eUse after preparing the skin with lotion\/toner and serum.\u003c\/li\u003e\n\u003cli\u003eDispense approximately a \u003cstrong\u003e5-yen coin-sized amount\u003c\/strong\u003e into clean palms.\u003c\/li\u003e\n\u003cli\u003eGently spread over the entire face.\u003c\/li\u003e\n\u003cli\u003eContinue down the \u003cstrong\u003eneck and décolleté\u003c\/strong\u003e as desired.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe formula can also be applied to \u003cstrong\u003edry elbows and heels, a dry scalp or dry hair ends\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWhen used morning and evening, one 20ml bottle lasts approximately \u003cstrong\u003e1–2 months\u003c\/strong\u003e, according to the brand's usage guideline.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eIngredients\u003c\/h2\u003e\n\u003cp\u003eSqualane, Ethylhexyl Palmitate, Jojoba Seed Oil, Haematococcus Pluvialis Oil, Bilberry Leaf Extract, Artichoke Leaf Extract, Caper Fruit Extract, Chondrus Crispus Extract, Licorice Root Extract, Rosa Roxburghii Extract, Geranium Robertianum Extract, Rosemary Leaf Extract, Rosehip Fruit Oil, Lavender Oil, Rosemary Leaf Oil, Geranium Oil, Tetrahexyldecyl Ascorbate, Trisodium Ascorbyl Palmitate Phosphate, Magnesium Ascorbyl Phosphate, Retinyl Palmitate, Thiamine HCl, Niacinamide, Calcium Pantothenate, Pyridoxine HCl, Cyanocobalamin, Riboflavin, Tocopherol, Caffeine, Glutathione, Corn Oil, Polyglyceryl-10 Oleate, Sucrose Stearate, Tricaprylin, Octyldodecyl Myristate, BG, Glycerin, Water, Sorbic Acid, Pentylene Glycol, Phenoxyethanol.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Doctor K\u003cbr\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e C Concentrate Oil Serum\u003cbr\u003e\u003cstrong\u003eJapanese Name:\u003c\/strong\u003e ドクターケイ Cコンセントレートオイルセラム\u003cbr\u003e\u003cstrong\u003eCategory:\u003c\/strong\u003e Vitamin C Oil Serum \/ Facial Oil\u003cbr\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e 20ml\u003cbr\u003e\u003cstrong\u003eKey Ingredients:\u003c\/strong\u003e Vitamin C Derivatives, Retinyl Palmitate, Niacinamide, Caffeine, Glutathione, Squalane \u0026amp; Botanical Oils\u003cbr\u003e\u003cstrong\u003eKey Concerns:\u003c\/strong\u003e Dryness, Visible Pores, Dullness, Shine, Uneven Texture \u0026amp; Skin Roughness\u003cbr\u003e\u003cstrong\u003eUse:\u003c\/strong\u003e Face, Neck, Décolleté, Body, Scalp \u0026amp; Hair\u003cbr\u003e\u003cstrong\u003eEstimated Usage:\u003c\/strong\u003e Approximately 1–2 months with morning and evening use\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003ePeople Also Ask\u003c\/h2\u003e\n\u003ch3\u003eWhat does Doctor K C Concentrate Oil Serum do?\u003c\/h3\u003e\n\u003cp\u003eIt is a vitamin-rich facial oil designed to moisturise and condition skin while helping prevent roughness and address the appearance of \u003cstrong\u003edryness-related pores, dullness, uneven texture and excess shine\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat types of Vitamin C are in Doctor K C Concentrate Oil Serum?\u003c\/h3\u003e\n\u003cp\u003eIt contains three Vitamin C derivatives: \u003cstrong\u003eTetrahexyldecyl Ascorbate, Trisodium Ascorbyl Palmitate Phosphate and Magnesium Ascorbyl Phosphate\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eDoes Doctor K C Concentrate Oil Serum contain retinol?\u003c\/h3\u003e\n\u003cp\u003eIt contains \u003cstrong\u003eRetinyl Palmitate\u003c\/strong\u003e, a vitamin A derivative. This is not the same ingredient as pure retinol.\u003c\/p\u003e\n\u003ch3\u003eCan I use Doctor K C Concentrate Oil Serum on my hair?\u003c\/h3\u003e\n\u003cp\u003eYes. Doctor K recommends the multi-purpose serum for \u003cstrong\u003edry hair ends\u003c\/strong\u003e, as well as the face, neck, décolleté, dry body areas and scalp.\u003c\/p\u003e","brand":"Doctor K","offers":[{"title":"Default Title","offer_id":54442808115518,"sku":null,"price":35.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/9359\/1614\/files\/DoctorKCConcentrateOilSerum20ml.jpg?v=1789283330","url":"https:\/\/tokyobeautybox.com\/ja\/products\/doctor-k-c-concentrate-oil-serum-20ml","provider":"Tokyo Beauty Box","version":"1.0","type":"link"}