If you have spent any time in skincare circles over the past few years, you will have encountered both The Ordinary and The Inkey List. They dominate the affordable skincare conversation in the UK. Boots and Superdrug stock both brands. Amazon UK has hundreds of products from each. The prices are similar, the marketing is straightforward, and the formulas tend to work.
But they are not the same. The way each brand approaches product development, ingredient combinations, and pricing strategy is meaningfully different. Understanding those differences helps you make better decisions about which products to buy from which brand.
How Do These Brands Differ?
The Ordinary launched in 2016 with a radical premise: sell effective skincare at the lowest possible price by eliminating everything except the active ingredient and a basic support formula. No fancy packaging, no marketing spin, no fragrance, no unnecessary additions. The result was a series of products that were dramatically cheaper than anything comparable on the market.
The Inkey List launched a few years later with a similar price philosophy but a different approach to formulation. Rather than pure single-ingredient products, The Inkey List tends to pair a primary active with one or two supporting ingredients. Their glycolic acid toner includes witch hazel for astringent benefits. Their niacinamide serum includes hyaluronic acid for hydration. The price is slightly higher, but the formula is more complete for many use cases.
The Inkey List also puts more effort into education. Their product pages include detailed explanations of what each ingredient does, why it is included, and how to use the product in a routine. The Ordinary product pages are more minimal, which some people appreciate and others find less helpful.
Head-to-Head Comparison
| Category | The Ordinary | The Inkey List |
|---|---|---|
| Price range | From around 3.50 for basic serums up to 20 for more complex formulations | From around 7.99 for basic products up to 25 for premium formulas |
| Formulation style | Single active + base. Minimal additions. | Primary active + supporting ingredients. More complete formulas. |
| Product guidance | Minimal. You need to know what you are looking for. | Detailed. Explains ingredients and how to use them. |
| Packaging | Simple pharmaceutical-style bottles and droppers. | Slightly more considered design, still minimal. |
| Ingredient transparency | Full list, but minimal explanation of what each does. | Full list with explanations of what each ingredient does. |
| Availability UK | Boots, Superdrug, Amazon UK, Look Fantastic, Feelunique. | Boots, Superdrug, Amazon UK, Look Fantastic, directly from brand. |
Where The Ordinary Wins
For pure single-ingredient products at the lowest price point, The Ordinary is hard to beat. If you know exactly what you want and you want it as cheaply as possible, The Ordinary is usually the right choice. Their Niacinamide 10% + Zinc 1% at around 4.50 on Amazon UK is still the benchmark for affordable oil-control serums. Their Glycolic Acid 7% Toning Solution at around 7 on Amazon UK remains one of the best-value exfoliating toners available anywhere.
The Ordinary also wins when you are building a routine where you want to combine multiple actives from different products. Because their formulas are minimal, you can layer them without worrying about duplicate or conflicting ingredients. If you want to use The Ordinary Niacinamide in the morning and The Ordinary Retinol in the evening, the formulas are designed to work alongside each other without unnecessary extras getting in the way.
The price difference matters for people building a full routine. If you are buying five or six products, the savings from choosing The Ordinary add up. A full basic routine from The Ordinary can cost under 40 pounds. The same routine from The Inkey List might cost 15 to 20 pounds more.
Where The Inkey List Wins
The Inkey List wins when you want a more complete product without having to layer multiple serums. Their Q10 Serum pairs CoQ10 with EGCG and resveratrol for antioxidant benefits that would require three separate The Ordinary products to replicate. Their Succinic Acid treatment for blemishes includes sulphur and willow bark in a single formula that handles cleansing, antibacterial action, and oil control together.
The Inkey List is also more accessible for skincare beginners. If you do not yet know the difference between niacinamide and salicylic acid, or if you are not sure which concentration to start with, The Inkey List product pages give you more information to make an informed decision. The Ordinary assumes you already know what you are looking for.
For people with combination skin who want hydration without heaviness, The Inkey List Hyaluronic Acid Serum includes Matrixyl 3000 peptide alongside the hyaluronic acid, which means you get plumping and anti-ageing benefits alongside hydration. That combination would require two separate The Ordinary products.
The Products Worth Buying From Each
The Ordinary Niacinamide 10% + Zinc 1%
From around 4.50 on Amazon UK
The standout The Ordinary product. Effective, affordable, and widely available. The zinc adds genuine oil-control benefits on top of what niacinamide already does. This is the product that introduced most people to both ingredients. Worth buying regardless of which brand you prefer overall.
The Ordinary Glycolic Acid 7% Toning Solution
From around 7 on Amazon UK
One of the best exfoliating toners available at any price point. The 7% concentration sits in the sweet spot between effective and accessible for most skin types. The addition of amino acids and Tasmanian Pepperberry reduces the irritation that sometimes comes with glycolic acid. If you are going to buy one The Ordinary product, this is a strong candidate.
The Inkey List 10% Niacinamide Serum
From around 9.99 on Amazon UK
The Inkey List equivalent to The Ordinary Niacinamide, but with one percent hyaluronic acid added. If your skin tends to be dry alongside being oily or combination, this is the better choice. The hyaluronic acid adds hydration without making the formula heavy. Fragrance-free and well-tolerated by most skin types.
The Inkey List Glycolic Acid Toner
From around 9.99 on Amazon UK
A step up from The Ordinary in concentration at 10%, with witch hazel added for astringent benefits. Better suited to people who have used glycolic acid before and want more pronounced results. The witch hazel helps if your primary concern is enlarged pores or excess oil. If you have found The Ordinary effective but want to go further, this is the logical next step.
The Bottom Line
Neither brand is better than the other across the board. The Ordinary wins on price and minimalism. The Inkey List wins on formulation completeness and accessibility. The right choice depends on what you are looking for in each specific product.
For budget-first buyers building a complete routine: start with The Ordinary and supplement with The Inkey List for products where the formula is meaningfully better. The Niacinamide from The Ordinary and the Hyaluronic Acid from The Inkey List make a strong combination at a reasonable total price.
For skincare beginners who want more guidance: The Inkey List is easier to navigate. Their product explanations help you understand what you are buying and why. This reduces the risk of buying products that are not right for your skin type.
For experienced users who know what they want: The Ordinary offers better value for money on single-ingredient products. Layer their products strategically and you can build a highly effective routine for significantly less than most alternatives on the market.