{"product_id":"medik8-crystal-retinal-10","title":"Medik8 - Crystal Retinal 10 Night Serum 30ml","description":"\u003ch2\u003eMedik8 Crystal Retinal 10 Night Serum 30ml\u003c\/h2\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eMedik8 Crystal Retinal 10\u003c\/strong\u003e is an evening facial serum\ncontaining \u003cstrong\u003e0.1% retinaldehyde\u003c\/strong\u003e. Positioned for advanced\nvitamin A users, it is a higher-strength option for people already\ncomfortable with a lower retinal concentration.\n\u003c\/p\u003e\n\n\u003cp\u003e\nRetinoid skincare can help improve the appearance of fine lines, uneven\npigmentation and rough texture. Moving to a stronger formula should\nreflect your skin’s tolerance and the routine you can maintain,\nrather than a need to reach the highest number in the range.\n\u003c\/p\u003e\n\n\u003ch2\u003eProduct Information at a Glance\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"text-align:left; padding:10px; border-bottom:1px solid #ddd;\"\u003eProduct\u003c\/th\u003e\n      \u003ctd style=\"padding:10px; border-bottom:1px solid #ddd;\"\u003eMedik8 Crystal Retinal 10\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"text-align:left; padding:10px; border-bottom:1px solid #ddd;\"\u003eSize\u003c\/th\u003e\n      \u003ctd style=\"padding:10px; border-bottom:1px solid #ddd;\"\u003e30ml\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"text-align:left; padding:10px; border-bottom:1px solid #ddd;\"\u003eVitamin A ingredient\u003c\/th\u003e\n      \u003ctd style=\"padding:10px; border-bottom:1px solid #ddd;\"\u003eRetinaldehyde 0.1%\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"text-align:left; padding:10px; border-bottom:1px solid #ddd;\"\u003eRange position\u003c\/th\u003e\n      \u003ctd style=\"padding:10px; border-bottom:1px solid #ddd;\"\u003eAdvanced vitamin A users\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"text-align:left; padding:10px; border-bottom:1px solid #ddd;\"\u003eApplication\u003c\/th\u003e\n      \u003ctd style=\"padding:10px; border-bottom:1px solid #ddd;\"\u003eEvening, before moisturiser\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCrystal Retinal 6 or 10?\u003c\/h2\u003e\n\n\u003cp\u003e\n\u003ca href=\"\/products\/medik8-crystal-retinal-6\"\u003eCrystal Retinal 6\u003c\/a\u003e\ncontains 0.06% retinal, compared with 0.1% in Crystal Retinal 10.\nMedik8 recommends completing at least one tube of the current strength\nbefore progressing.\n\u003c\/p\u003e\n\n\u003cp\u003e\nFinishing a tube is a useful checkpoint, rather than an instruction to\nincrease automatically. Consider whether you have used it consistently,\nwhether your skin remains comfortable, and whether you want to change\na routine that already suits you.\n\u003c\/p\u003e\n\n\u003cp\u003e\nIf you still experience repeated dryness or stinging, resolve that before\nconsidering a higher concentration. For those starting vitamin A,\n\u003ca href=\"\/products\/medik8-crystal-retinal-3\"\u003eCrystal Retinal 3\u003c\/a\u003e\nis the range’s beginner option.\n\u003c\/p\u003e\n\n\u003ch2\u003eRetinal, Retinol and Product Strength\u003c\/h2\u003e\n\n\u003cp\u003e\nRetinal and retinol are different forms of vitamin A. Their percentages\nare not directly interchangeable, so experience with a retinol serum\ndoes not provide an exact calculation for choosing a retinal strength.\n\u003c\/p\u003e\n\n\u003cp\u003e\nCompare the ingredient, concentration, formulation and application\nfrequency together. A stronger percentage alone cannot predict how\nquickly your skin will change or whether a product will feel comfortable.\n\u003c\/p\u003e\n\n\u003ch2\u003eFormulation\u003c\/h2\u003e\n\n\u003cp\u003e\nThe formula includes hyaluronic acid, glycerin and vitamin E alongside\nretinal. Check the supplied packaging for the complete ingredient\ndeclaration.\n\u003c\/p\u003e\n\n\u003cp\u003e\nWhen assessing suitability, consider the whole routine as well as the\nserum. Frequent exfoliation, harsh cleansing and several newly introduced\nactive products can make it harder to tolerate a retinoid.\n\u003c\/p\u003e\n\n\u003ch2\u003eHow to Use Crystal Retinal 10\u003c\/h2\u003e\n\n\u003col\u003e\n  \u003cli\u003ePatch test at least 24 hours before first use.\u003c\/li\u003e\n  \u003cli\u003eAfter evening cleansing, apply two pumps to the face and neck, avoiding the eye area.\u003c\/li\u003e\n  \u003cli\u003eAllow to absorb, then follow with moisturiser.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\nFollow your supplied directions when changing strength. If your skin\nbecomes dry or irritated, reduce frequency or pause use rather than\ncontinuing through discomfort.\n\u003c\/p\u003e\n\n\u003cp\u003e\nKeep the rest of your routine familiar while making the change.\nAvoid increasing both product strength and the number of other active\nproducts at the same time.\n\u003c\/p\u003e\n\n\u003ch2\u003eSupporting Your Skin During the Transition\u003c\/h2\u003e\n\n\u003cp\u003e\nUse a gentle cleanser and a moisturiser that you already tolerate.\nIf you are comparing moisturisers,\n\u003ca href=\"\/products\/obagi-hydrate-facial-moisturiser-48g\"\u003eObagi Hydrate Facial Moisturiser\u003c\/a\u003e\nprovides a lightweight cream option. There is no need to replace a\nsuitable existing moisturiser solely because you change retinal strength.\n\u003c\/p\u003e\n\n\u003cp\u003e\nApply broad-spectrum SPF 30 or higher during the day. Sun protection\nsupports a routine aimed at uneven pigmentation and visible signs\nof ageing.\n\u003c\/p\u003e\n\n\u003ch2\u003eResults and Expectations\u003c\/h2\u003e\n\n\u003cp\u003e\nJudge progress over time using comparable photographs and a record\nof how often you apply the product. Look at changes in texture and\ntone alongside skin comfort, rather than judging effectiveness by\ntingling or peeling.\n\u003c\/p\u003e\n\n\u003cp\u003e\nA higher concentration does not guarantee proportionally greater\nresults. Clinical findings for another strength should not be treated\nas a prediction for this product or for your individual skin.\n\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdl\u003e\n  \u003cdt\u003e\u003cstrong\u003eDoes Crystal Retinal 10 contain 10% retinal?\u003c\/strong\u003e\u003c\/dt\u003e\n  \u003cdd\u003e\n    No. Its retinal concentration is 0.1%; “10” identifies the strength\n    within the product range.\n  \u003c\/dd\u003e\n\n  \u003cdt\u003e\u003cstrong\u003eCan I start with this if I have never used vitamin A?\u003c\/strong\u003e\u003c\/dt\u003e\n  \u003cdd\u003e\n    This is an advanced option. Starting with a lower concentration\n    makes it easier to establish tolerance. Seek advice before introducing\n    retinoids if your skin is sensitive or you have an existing skin condition.\n  \u003c\/dd\u003e\n\n  \u003cdt\u003e\u003cstrong\u003eDo I need to move up if Crystal Retinal 6 is working?\u003c\/strong\u003e\u003c\/dt\u003e\n  \u003cdd\u003e\n    No. Remaining with a comfortable, consistent routine is reasonable.\n    Increasing strength is an option to consider, not a requirement\n    for continued skincare.\n  \u003c\/dd\u003e\n\n  \u003cdt\u003e\u003cstrong\u003eCan I apply more to get faster results?\u003c\/strong\u003e\u003c\/dt\u003e\n  \u003cdd\u003e\n    Use the directed amount. Extra application can increase irritation\n    without guaranteeing additional improvement. Consistency should\n    not come at the expense of skin comfort.\n  \u003c\/dd\u003e\n\n  \u003cdt\u003e\u003cstrong\u003eCan I alternate it with a lower strength?\u003c\/strong\u003e\u003c\/dt\u003e\n  \u003cdd\u003e\n    A simpler schedule can make your skin’s response easier to assess.\n    If you are unsure how to transition, seek advice rather than layering\n    different strengths in the same application.\n  \u003c\/dd\u003e\n\n  \u003cdt\u003e\u003cstrong\u003eCan I use exfoliating acids in the same routine?\u003c\/strong\u003e\u003c\/dt\u003e\n  \u003cdd\u003e\n    Retinoids and exfoliating products can cause cumulative irritation.\n    Review how much exfoliation your routine already contains before\n    increasing strength, particularly if you experience tightness,\n    stinging or flaking.\n  \u003c\/dd\u003e\n\n  \u003cdt\u003e\u003cstrong\u003eCan I combine it with prescription retinoids?\u003c\/strong\u003e\u003c\/dt\u003e\n  \u003cdd\u003e\n    Ask your prescriber before adding another vitamin A product.\n    Combining retinoids may be unnecessary and can make treatment\n    harder to tolerate.\n  \u003c\/dd\u003e\n\n  \u003cdt\u003e\u003cstrong\u003eShould I continue through redness or peeling?\u003c\/strong\u003e\u003c\/dt\u003e\n  \u003cdd\u003e\n    Persistent irritation is a reason to pause and reassess.\n    Burning, soreness or swelling should not be dismissed as evidence\n    that the product is working. Seek advice for a significant or\n    continuing reaction.\n  \u003c\/dd\u003e\n\n  \u003cdt\u003e\u003cstrong\u003eCan I use it during pregnancy or breastfeeding?\u003c\/strong\u003e\u003c\/dt\u003e\n  \u003cdd\u003e\n    Avoid topical retinoids during pregnancy or when planning pregnancy.\n    If breastfeeding, discuss the product with your clinician before use.\n  \u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eRelated Medik8 Skincare\u003c\/h2\u003e\n\n\u003cp\u003e\nExplore our \u003ca href=\"\/collections\/medik8\"\u003eMedik8 skincare collection\u003c\/a\u003e\nto compare the available formulations and their place in your routine.\n\u003c\/p\u003e\n\n\u003ch2\u003ePrecautions\u003c\/h2\u003e\n\n\u003cp\u003e\nFor external use only. Avoid eyes and broken or irritated skin.\nKeep out of reach of children. Follow the directions, storage\ninstructions and period-after-opening information on your packaging.\n\u003c\/p\u003e","brand":"Medik8","offers":[{"title":"Default Title","offer_id":54002507809115,"sku":null,"price":94.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/9338\/4027\/files\/CrystalRetinal10_52aba594-7559-475a-acde-c85048944a57.jpg?v=1788946784","url":"https:\/\/skinbyscience.co.uk\/products\/medik8-crystal-retinal-10","provider":"skinbyscience","version":"1.0","type":"link"}