Marks And Spencer Formula Serum Review 2026: Worth It?

If you want firmer skin without paying luxury prices, the new Marks and Spencer Formula serum deserves a look. M&S rebuilt its own brand Formula line in 2026 with 16 products and put a peptide led serum at the top of the range. The Ultra Peptide Serum costs £29, and it sold out fast in several stores. M&S also ran a four week trial with 110 women, and 86% of them said their main skin concerns looked better. That number explains the hype.

This review breaks down what sits inside each Formula serum, how the textures feel, and what real buyers say after using them. You will also see honest pros and cons plus three Amazon alternatives that cost less than the M&S bottles. By the end you will know if this serum suits your skin or if your money belongs elsewhere.

In a nutshell

• The hero serum is the Ultra Peptide Serum. It costs £29 for 30ml and it pairs peptides with an NAD+ booster.
• The range holds three serums. Choose the Ultra Peptide Serum, the Retinoid Renewal Serum at £25, or the Hyaluronic Hydrating Serum at £22.
• The trial data looks strong. In a four week study of 110 women, 92% felt instantly hydrated and 81% saw skin that looked tighter and lifted.
• The texture suits most skin types. Buyers call it light, fast absorbing and easy to layer under makeup.
• Value is the main draw. Every serum sits below £30, and the wider Formula range starts at £12.
• A few buyers want more. Some reviews mention a light scent, a bottle that empties quickly, and results that take longer than four weeks to appear.

What Is Marks And Spencer Formula Serum

Formula is the own brand skincare line from Marks and Spencer. The line started in 1994, so it carries more than 30 years of history. In 2026 M&S rebuilt the collection from the ground up with 16 products, and the brand fronts the launch with Emma Willis.

The serum family sits at the centre of that story. Three serums carry the range.

• Ultra Peptide Serum at £29 for 30ml
• Retinoid Renewal Serum at £25 for 30ml
• Hyaluronic Hydrating Serum at £22

The Ultra Peptide Serum leads the group. M&S calls it the most advanced serum the brand has ever made. It targets firmness, fine lines, dullness, dryness and visible pores at the same time.

You can buy Formula products in M&S stores and on marksandspencer.com. The brand does not list the serums on Amazon.com, so shoppers in the United States need a UK shipping service. That gap opened the door for the Amazon picks further down this page.

Price is the reason people talk. Most department store peptide serums cost £50 or more. Formula keeps the entry point low and still uses recognised actives.

What Changed In The 2026 Formula Relaunch

M&S did not simply drop new bottles on the shelf. The brand changed the ingredients, the textures and the packaging together.

The biggest change is peptide stacking. Instead of relying on one peptide, Formula layers several peptide technologies in each product. M&S says peptides support multiple skin concerns at once. That claim matches the science, because peptides help skin build collagen and elastin.

The second change is the NAD+ booster. NAD+ is a molecule your cells use for energy, and levels fall with age. The booster feeds skin cells and supports collagen over time.

The third change is the bottle. The new serums arrive in heavy glass with a pump. Buyers like the look, and many reviews call the packaging premium for the price.

The range also became simpler. M&S trimmed the endless steps and built a short routine around cleansing, treatment and moisture. You can finish a full routine with three products each morning and three each evening.

Why The M&S Formula Ultra Peptide Serum Went Viral

Beauty editors picked up the range fast. Grazia tested the full routine for a month and named the Ultra Peptide Serum the standout product. The writer said the serum made her skin glow on her forehead and the apples of her cheeks.

Sheer Luxe called it the affordable serum everyone talks about. The site reported that the serum targets seven concerns at once, including firmness, tone and pores.

Good Housekeeping UK reviewed the peptide edit and pointed out that the hero serum stays under £30.

Real buyers agree on the feel. Reviews on the M&S site describe a light texture that absorbs in seconds. Many people say it works well under makeup and leaves no sticky film.

Not every review is glowing. One buyer said the bottle emptied within a month. Another said the price no longer feels competitive. A third said four weeks was too short to judge results.

That mix of praise and doubt is normal for a new launch. The viral push came from the price, the packaging and the trial numbers working together.

Top 3 Alternatives for M&S Formula Ultra Peptide Serum

Last update on 2026-10-13 / Affiliate links / Images from Amazon Product Advertising API

Last update on 2026-10-10 / Affiliate links / Images from Amazon Product Advertising API

Last update on 2026-10-11 / Affiliate links / Images from Amazon Product Advertising API

1. 6X Peptide Collagen Skin Booster Toner Serum. This Korean style toner serum blends six peptide types with collagen. It costs about $21 for 5.07 oz and holds 4.6 stars from more than 13,000 reviews. The watery texture layers well under moisturiser and suits people who dislike heavy serums.

2. The Ordinary Hyaluronic Acid 2% + B5. This serum focuses on hydration and adds ceramides. It costs about $10 and carries 4.7 stars from over 42,000 reviews. Choose it if plumpness matters more to you than firmness.

3. The Ordinary Niacinamide 10% + Zinc 1%. Niacinamide sits inside the M&S serum too. This version costs about $6 and holds 4.7 stars from more than 68,000 reviews. It helps with oil balance, pores and blemish prone skin.

Each option works as a daily serum. Pair one with a plain moisturiser and sunscreen for a simple routine that costs far less than a luxury alternative.

M&S Formula Ultra Peptide Serum Ingredients Explained

The ingredient list explains the results. Each active does a clear job.

Peptides sit at the core. They signal the skin to build more collagen and elastin, so skin looks firmer over time.

The NAD+ booster supports cell energy. Tired cells repair less overnight, and the booster helps them bounce back.

Ceramides rebuild the skin barrier. A strong barrier holds water in and keeps irritants out.

Niacinamide calms redness and controls oil. It also evens out tone with regular use.

Omega 3 and 6 fatty acids feed the skin lipids. These fats keep the surface soft and flexible.

Meadowfoam seed oil and squalane add light moisture without a greasy finish.

The serum also contains fragrance. That detail matters if your skin reacts to scent, so patch test first if you have sensitive skin.

M&S published trial data for the serum. In a four week study of 110 women, 92% said their skin felt instantly hydrated. 81% said their skin looked tighter and lifted. A separate clinical test on 22 volunteers over eight weeks found a proven reduction in fine lines and wrinkles.

How The Ultra Peptide Serum Compares With Amazon Peptide Serums

Last update on 2026-10-11 / Affiliate links / Images from Amazon Product Advertising API

Price is the first difference. The M&S serum costs £29 for 30ml. The Amazon copper peptide option above costs about $12 and holds 4.6 stars from more than 4,200 reviews.

Ingredient depth is the second difference. The M&S serum carries peptides, ceramides, niacinamide, omegas and an NAD+ booster in one bottle. Most budget Amazon serums carry two or three actives.

Results speed is the third difference. M&S funded its own trials and published the numbers. Amazon brands rarely publish trial data, so you lean on buyer reviews instead.

Delivery is the fourth difference. M&S ships inside the UK and Ireland with no import fees. Amazon ships worldwide and often arrives within days.

My take: buy the M&S serum if you live in the UK and you want the full active blend. Buy the Amazon copper peptide serum if you want a lower price and fast shipping to your door.

M&S Formula Retinoid Renewal Serum Review

The Retinoid Renewal Serum is the night option in the range. It costs £25 for 30ml and it uses next generation retinoids with bakuchiol, shea butter and vitamin E.

Retinoids speed up surface cell turnover. That process smooths texture and softens fine lines. Bakuchiol comes from a plant and behaves like a gentle retinol, so the formula feels kinder on the skin.

The trial numbers look strong. In a four week study of 114 women, 95% said their skin texture improved. 82% said imperfections looked reduced. 90% said the serum worked without drying their skin.

Buyers describe a light texture and a silky finish. Several reviews mention a yellow colour, which comes from the retinoid itself rather than spoilage.

Start slow. M&S advises one or two uses each week, then a build up to nightly use. Pause the serum for about a week before a sunny holiday, because retinoids make skin more sun sensitive.

Use it at night only. Follow with moisturiser and wear sunscreen every morning.

M&S Formula Hyaluronic Hydrating Serum Review

The Hyaluronic Hydrating Serum is the cheapest serum in the line at £22 for 30ml. It targets dehydration and dullness rather than firmness.

Three humectants carry the formula. Multi molecular hyaluronic acid pulls water into several skin layers. Polyglutamic acid holds even more water than hyaluronic acid. Aloe vera calms the surface and adds a soft soothing effect.

The trial data backs the texture claims. In a four week study of 99 women, 93% said the serum absorbed fast and felt non sticky. 92% said their overall skin appearance improved. 87% said their skin looked plumper after the first use.

Buyers like this one for layering. It sits well under makeup and does not pill on the skin.

Who is it for? Choose this serum if your skin feels tight, flaky or dull. Choose the Ultra Peptide Serum if firmness and fine lines bother you more.

You can use both. Apply the hyaluronic serum first, then the peptide serum, then moisturiser.

Pros And Cons Of M&S Formula Serum

Every product has two sides. Here is the honest list after reading the trials and the buyer reviews.

Pros

• The range starts at £12, which sits far below most department store serums
• The Ultra Peptide Serum mixes peptides, ceramides, niacinamide and an NAD+ booster in one bottle
• Textures feel light, absorb fast and layer well under makeup
• M&S published full trial data with sample sizes and time frames
• The glass pump bottles look premium on a shelf
• Three serums cover firmness, texture and hydration needs

Cons

• Formula serums are hard to buy outside the UK and Ireland
• The Ultra Peptide Serum contains fragrance, which may irritate sensitive skin
• Some buyers report the bottle empties faster than expected
• A few reviews say the price is no longer the bargain it once was
• Results take at least four weeks to show, so patience is required
• You cannot buy the M&S serums on Amazon.com

Who Should Buy M&S Formula Serum

The line suits several groups of shoppers.

First, it suits people who want peptides at a low price. A bottle of the Ultra Peptide Serum costs £29, and you use a small amount each time. One bottle lasts around two to three months.

Second, it suits people who want a short routine. You can build everything with a cleanser, one serum and one moisturiser. That is three steps in the morning and three at night.

Third, it suits people who like published evidence. M&S ran trials with 99 to 114 women per product. Few budget brands share that level of detail.

Who should skip it? Skip the Ultra Peptide Serum if your skin reacts to fragrance. Skip the Retinoid Renewal Serum if you are pregnant or breastfeeding, unless your doctor approves. Skip the whole line if you live outside the UK and you dislike shipping services.

If you need a serum today and you shop on Amazon, the three alternatives above ship faster.

Is M&S Formula Serum Worth It In 2026

Short answer: yes, for most people in the UK.

The Ultra Peptide Serum delivers a solid ingredient list at £29. Peptides, ceramides, niacinamide, omegas and an NAD+ booster in one bottle is rare at this price. The trial numbers also hold up, with 86% of 110 women reporting visible improvement.

The other two serums make sense for specific needs. Pick the Retinoid Renewal Serum for texture and fine lines. Pick the Hyaluronic Hydrating Serum for dehydration and dullness. Both cost less than the hero serum.

The weak points are real. The fragrance will not suit every skin type. Stock runs out during promotions. International buyers face shipping limits. None of these issues break the value, but they matter.

If you want one serum and you live in the UK, buy the Ultra Peptide Serum. If you live elsewhere, start with an Amazon peptide serum and upgrade later. Either way, give any serum four full weeks before you judge it.

FAQs

How much does M&S Formula serum cost?
The Ultra Peptide Serum costs £29 for 30ml. The Retinoid Renewal Serum costs £25 and the Hyaluronic Hydrating Serum costs £22. The wider Formula range starts at £12.

Is M&S Formula serum sold on Amazon?
No. M&S sells Formula products through its own stores and its own website. Amazon.com does not list the serums, so you need a UK shipping service or a local alternative.

What is the best M&S Formula serum for beginners?
The Hyaluronic Hydrating Serum is the safest first pick. It hydrates without strong actives that cause irritation. Move to the Ultra Peptide Serum after that.

Can I use M&S Formula serum every day?
Yes. The Ultra Peptide Serum suits morning and evening use. Use the Retinoid Renewal Serum at night, and start with one or two uses each week.

How long until I see results?
M&S trial data covers four weeks for consumer results and eight weeks for the clinical wrinkle test. Give any serum a full month before you judge it.

Does M&S Formula serum suit sensitive skin?
The serums are gentle, but the Ultra Peptide Serum contains fragrance. Patch test on your jaw first and watch for redness.

Which M&S Formula serum works best for fine lines?
The Ultra Peptide Serum and the Retinoid Renewal Serum both target fine lines. The retinoid option is stronger, and the peptide option is gentler.