Welcome to the INKEY Blog. Where we spread and share our skincare knowledge with you!

Retinol is one of the most scientifically proven ingredients in skincare, delivering powerful benefits for ageing, texture, acne, and overall skin health—but its effectiveness depends heavily on how it’s used. Because retinol works through a precise conversion process within the skin, combining it with incompatible ingredients or incorrect layering can reduce results and trigger irritation. Understanding the science behind retinol interactions allows you to avoid common pitfalls, pair it with supportive ingredients, and build routines that maximise benefits while protecting the skin barrier. With the right knowledge, retinol becomes not an intimidating active, but a transformative tool for long-term skin health.

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.

The INKEY Oat Cleansing Balm costs just 15p per cleanse - and that number changes everything. Clinically proven to remove waterproof makeup and SPF while supporting the skin barrier, this oat-powered formula delivers approximately 100 uses per tube for £15. In this guide, we break down why cleansing balms outperform wipes and foaming cleansers, what makes oat kernel oil so effective for sensitive skin, and why cost-per-use is the smartest way to shop skincare.

Discover what post-inflammatory hyperpigmentation (PIH) really is, why acne leaves dark marks behind, and how to fade them effectively. From Tranexamic Acid and Niacinamide to SPF and retinoids, this complete guide breaks down the best ingredients, routines, and prevention tips to help visibly reduce post-acne dark marks and support clearer, more even-looking skin.

A guide to how long tranexamic acid takes to work - from the first visible improvements at 2–4 weeks to significant fading of hyperpigmentation, dark spots, melasma, and post-blemish marks at 6–12 weeks. Discover the real results timeline, what affects your progress, and how to maximise results with INKEY’s 2% Tranexamic Acid Serum.

Red light therapy has become a popular non-invasive treatment for skin concerns like fine lines, redness, acne, and dullness. Using specific wavelengths of red and near-infrared light, it helps stimulate cellular energy, supporting collagen production, healing, and overall skin renewal.

In this guide, we explore how red light therapy works, the benefits backed by research, and key safety considerations. We’ll also highlight effective skincare alternatives that can deliver similar results, including clinically proven ingredients like retinoids, vitamin C, peptides, niacinamide, and ceramides — with targeted INKEY List products to help you achieve healthy, glowing skin without investing in a device.

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.

Struggling with persistent breakouts, pigmentation, or excess oil? The 360 Skin Clearing Serum is here to change your skincare game. This all-in-one formula is designed to visibly improve blemish-prone skin by targeting every stage of a breakouts.

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.

This in-depth guide breaks down how retinol helps fade acne scars, dark spots, and red marks — and how to choose the right INKEY retinol for your skin. Learn the difference between PIE, PIH, and true acne scars, how retinol works on each, and how to build a results-driven routine with realistic timelines. Whether you’re new to retinol or ready for advanced strength, discover science-backed solutions for clearer, more even-looking skin

Consider us your token skincare friend. Meet, Real Results with INKEY. This is our dedicated series where we pass off the mic to our very own customers, who will share their reviews and recommendations on some of our products.

Introducing your new hyperpigmentation hero - Mandelic Acid. A member of the Alpha Hydroxy Acid family, we’ve formulated this gentle treatment to target marks and scarring caused by breakouts as well as pigmentation concerns. 

There are a few reasons why acne scars occur. Firstly, not all acne will result in scarring and even if it does, there are plenty of treatments to reduce their appearance and help them disappear completely. Learn what can cause scarring, how to get rid of scarring and prevent the risk of them occurring.