Applying SPF every day is one of the best things you can do for your skin — but removing it properly is just as important. Because sunscreen is designed to resist water, sweat, and friction, a single cleanse often isn’t enough to fully remove it from the skin. Left behind, SPF residue can contribute to congestion, dullness, and reduced effectiveness of your evening skincare products. In this guide, we explain why sunscreen is so difficult to remove, the science behind double cleansing, and how to choose the right cleanser pairing for your skin type. Discover the simple routine that helps keep skin clear, balanced, and healthy.

Summer can make oily skin feel harder to manage than ever. Rising temperatures, humidity, and UV exposure all increase sebum production, leading to more shine, congestion, and breakouts. But many common summer skincare habits — like over-cleansing, skipping moisturiser, or relying on harsh alcohol-based products — can actually make the problem worse. In this guide, we explain why oily skin changes in summer, the mistakes to avoid, and the ingredients that genuinely help regulate oil production. From Salicylic Acid and Niacinamide to lightweight water-based hydration, discover how to build a summer routine that keeps skin balanced, comfortable, and clearer-looking.

Does oily skin really need moisturiser? Absolutely — and skipping it could be making your skin even oilier. While it may seem counterintuitive, oily skin still needs hydration, and a lack of moisture can trigger increased sebum production as the skin tries to compensate. In this guide, we explain the science behind oily skin and hydration, what to look for in a moisturiser, which ingredients to avoid, and why lightweight water creams are often the best choice. You’ll also discover how ingredients like Niacinamide, Glycerin, and Ceramides help balance oil, support the skin barrier, and keep skin hydrated without feeling greasy.

Can your skin be oily and dehydrated at the same time? Absolutely — and it’s far more common than most people realise. While oily skin is a skin type driven by sebum production, dehydrated skin is a temporary condition caused by a lack of water in the skin. The two often coexist, especially when harsh cleansers, over-exfoliation, or skipping moisturiser compromise the skin barrier. In this guide, we explain the science behind oily dehydrated skin, how to recognise the signs, and the ingredients that help restore balance. Discover how Hyaluronic Acid, Niacinamide, and lightweight moisturisers can hydrate skin without adding excess oil.

Oily skin is one of the most common skin types, but it’s also one of the most misunderstood. While excess oil production is largely driven by genetics and hormones, factors like over-cleansing, skipping moisturiser, stress, and dehydration can all make shine worse. In this guide, we break down the biology of oily skin, explain why your skin may still feel greasy after washing, and uncover the most common causes of excess sebum production. You’ll also discover the ingredients that actually work — including Niacinamide and Salicylic Acid — plus a simple routine to help balance oil, minimise congestion, and support healthier-looking skin.

SPF 30 or SPF 50? The difference is smaller than most people think - but how you apply sunscreen matters far more than the number on the bottle. In this evidence-based guide, we break down what SPF ratings actually mean, why most people aren’t getting the protection they think they are, when SPF 50 is genuinely worth it, and how UV exposure changes across different US climates. From tanning myths to application mistakes, this is your practical, no-nonsense guide to choosing the right SPF for your skin, lifestyle, and daily routine.

Mineral vs chemical sunscreen: one of skincare’s biggest debates - and one of its most misunderstood. Both protect effectively against UV damage, but they differ in texture, finish, and wearability. This guide breaks down the real science behind both filter types, the truth about “chemical sunscreen” myths, and how to choose the SPF you’ll actually wear every day.

Reapplying sunscreen is the part of SPF that actually keeps your skin protected - but for most people, makeup gets in the way. This guide explains why sunscreen needs topping up throughout the day, how often to reapply, and the easiest ways to layer SPF over makeup without ruining your base. From beauty blender techniques to common SPF mistakes, here’s everything you need to know for real-world sun protection.

Daily SPF is not just a summer habit - it is one of the most important long-term investments you can make in your skin health. In this guide, we break down the science behind year-round UV exposure, explain the difference between UVA and UVB rays, and explore why winter, cloudy days, indoor light through windows, and even daily commutes still expose your skin to cumulative damage. Backed by clinical research and UK seasonal UV data, this article explains exactly how daily broad-spectrum SPF helps prevent premature ageing, pigmentation, collagen breakdown, and long-term skin damage - while showing you how to build an effective winter skincare routine around it.

Learn how long skincare products really last, what the PAO symbol means, and how to store your skincare properly to keep formulas safe, stable, and effective. From Vitamin C and retinoids to cleansing balms and eye creams, this complete guide explains what causes products to expire, when a skincare fridge helps (and when it doesn’t), plus the warning signs a product has gone off.

Skincare acids can transform your skin - when you know which one to use. From glycolic acid for glow and texture, to salicylic acid for breakouts and PHAs for sensitive skin, this guide breaks down exactly what each acid does, who it’s best for, and how to use it safely for clearer, brighter, healthier-looking skin.

Men’s skin is biologically different - producing more oil, experiencing regular shaving stress, and often dealing with larger pores, congestion, and sensitivity. This complete guide breaks down exactly how to build an effective men’s skincare routine, from cleansing and hydration to shaving care, beard maintenance, and product layering. Whether you are starting from scratch or refining your current routine, discover the essential ingredients, routines, and expert-backed tips that help keep male skin clear, healthy, and protected every day

Your skin doesn’t need the same routine all year round - and treating it like it does could be holding your skin back. From winter dryness and barrier disruption to summer oiliness and breakouts, seasonal changes directly affect how your skin behaves. In this complete guide, we break down exactly how to adapt your skincare routine for spring, summer, autumn, and winter, including the products to switch, the ingredients to prioritise, and the signs your skin is giving you each season. Whether your skin is feeling dehydrated, congested, dull, or sensitive, this guide will help you build a routine that works with your skin all year long.

Your skin deserves more than a one-size-fits-all routine. This complete skincare guide breaks down exactly how to build an effective AM and PM routine based on your skin type - whether you’re oily, dry, combination, sensitive, or blemish-prone. From identifying your true skin type to choosing the right actives, layering products correctly, and avoiding the most common skincare mistakes, this guide gives you everything you need to create a routine that actually works. Featuring step-by-step routines, expert ingredient advice, and tailored product recommendations from The INKEY List.

Niacinamide is one of the most effective - and easiest - skincare ingredients to add to your routine. In this complete guide, discover exactly how to use niacinamide serum for clearer, more balanced skin, including when to apply it, how to layer it correctly, what products pair best with it, and how long results realistically take. Whether your skin is oily, dry, blemish-prone, or sensitive, this guide breaks down the routines, mistakes to avoid, and expert application tips that make niacinamide work harder for your skin.

Niacinamide is often labelled as an ingredient for oily or blemish-prone skin - but that reputation overlooks one of its most important benefits. For dry skin, niacinamide helps strengthen the skin barrier, boost ceramide production, reduce moisture loss, and calm irritation at the source. In this guide, we break down exactly how niacinamide works for dry skin, why it does not cause dryness, how to layer it correctly in your routine, and the best INKEY List products to pair with it for long-term hydration and barrier support.

Discover why niacinamide and retinol are one of skincare’s most effective ingredient pairings. This expert guide breaks down the science behind the combination, the correct application order, beginner-friendly routines, common myths, and the best INKEY products to use together for smoother, clearer, more balanced skin.

Niacinamide is one of the most effective and well-tolerated ingredients for blemish-prone skin - and the science behind it is stronger than most people realise. This guide breaks down exactly how niacinamide helps reduce breakouts through four clinically backed mechanisms: calming inflammation, regulating excess oil, supporting the skin barrier, and helping fade post-breakout marks. We also answer the most searched questions around niacinamide and acne - including whether it causes purging (it doesn’t), whether it can worsen breakouts, and how to build it into a routine that actually works.

Discover the difference between two of skincare’s most searched-for ingredients: hyaluronic acid and niacinamide. In this complete guide, we break down what each ingredient does, who benefits most from them, how they compare, and why they work even better together. Whether your skin concerns are dehydration, excess oil, blemishes, enlarged pores, or uneven tone, you’ll learn exactly how to choose the right serum for your skin - and how to layer them correctly for maximum results. Featuring expert-backed insights and product recommendations from The INKEY List, this guide makes building an effective skincare routine simple, accessible, and easy to understand.

Think oily skin doesn’t need hydration? Think again. Hyaluronic acid is one of the best ingredients for oily and blemish-prone skin because it hydrates with water - not oil. In this guide, we break down why oily skin can still be dehydrated, how hyaluronic acid helps balance excess sebum, and why pairing it with niacinamide creates the ultimate routine for clearer, healthier-looking skin. From debunking common myths to explaining the science behind hydration and oil production, discover exactly how to use hyaluronic acid for balanced, shine-controlled skin without heaviness or clogged pores.

Azelaic acid and niacinamide are one of skincare’s most compatible and effective ingredient pairings. Together, they help target redness, blemishes, hyperpigmentation, excess oil, uneven skin tone, and barrier support - all while remaining gentle enough for sensitive and rosacea-prone skin. In this guide, we explain how each ingredient works, why they complement each other so well, how to layer them correctly, and how to build them into a routine using INKEY’s 10% Azelaic Acid Serum for Redness Relief and 10% Niacinamide Serum.

Smart skinimalism is the 2026 skincare trend redefining results through simplicity. Backed by science, this approach prioritises skin barrier health and multi-functional ingredients over excessive layering. Discover why simplified routines can reduce irritation by up to 40% and how to build an effective, evidence-based 3-step routine for healthier, more resilient skin.

If you struggle with breakouts, you’ve probably heard of these ingredients before: Salicylic Acid and Benzoyl Peroxide. Both are key for keeping skin clear and smooth, but they do so in totally different ways.

Not sure where to start with moisturisers? We don’t blame you. This lightweight, oil-free moisturiser is the answer to everyone’s moisturizer questions. 

Clogged pores occur when oil and dead skin cells build up inside of pore linings and they expand to accommodate it. Here are our derm-recommended tips for dramatically smaller-looking pores.

Toners are an excellent step to add into your routine as they work to deliver a range of benefits to skin and come in all different forms. Learn what a toner is, how to use one in your routine and more.

Beta Hydroxy Acids are oil soluble chemical exfoliators and a great choice for oily and breakout prone skin. They work deeper in the skin than Alpha Hydroxy Acids, and can help unclog pores and target blackheads.