Medicube Triple Collagen Serum 4.0 (55 ml)

Overview

Medicube markets this on collagen, and you use it as a targeted treatment step. With a strong 4.5 out of 5 from 605 ratings, it is a well-liked pick. Its Amazon listing does not flag strong actives, which is a filter on listing text rather than a safety assessment.

The summary above follows how Medicube markets this product. We also read the published ingredient list line by line, and it tells a different story: what the ingredient order actually says.

At a glance

What buyers actually say

We read a sample of the Amazon reviews for this product and describe the pattern in our own words. It is a sample, not a survey of all 679 ratings, and we do not reproduce customer reviews.

Every review in our sample is five stars, and most are short. The consistent thread is hydration: skin described as plumped, smooth and comfortable, with a glassy finish that make-up sits on well. Buyers with dry or sensitive skin come up repeatedly, including one in her sixties, and several use it alongside the matching cream or a Medicube device. Price is mentioned approvingly more than once. There is very little here beyond that. Several reviewers said outright it was too soon to judge results, and the four percent of ratings at one star are simply not represented in what we read, so we cannot tell you what those buyers found wanting.

How the ratings break down

Amazon's own star distribution for this product, read on 2026-10-01. We show the one-star share too, because an average alone hides it.

5% of these ratings are one or two stars. That is about typical for the Medicube range, where the median is 6%.

We cannot tell you what those reviewers said. Amazon.co.uk now requires an account to open the full review list, so the critical reviews are not readable from a public page. We would rather say that than guess.

What is collagen?

Topical collagen is a large hydrating molecule that holds water at the surface, making skin feel plumper and smoother rather than rebuilding your own collagen.

What we can and cannot tell you about this serum

• We do not have a verified ingredient list for the 4.0 specifically. The one we held belonged to the original Triple Collagen Serum, and we could show that because the original's own listing publishes a list that matches it. So it has been removed from this page rather than used to describe a formula it does not describe.
• That correction changes what this page used to say. The earlier reading called this a fragranced, alcohol-forward serum. Those positions are real, but they belong to the original, and we should not have pinned them on the reformulation.
• What the review record shows is solid: a good rating on a review base in the low hundreds, which is thin next to the original's thousands but clean.
• The 4.0 name signals a reformulation of a serum that is still on sale beside it. Version numbers tell you the brand changed something; they do not tell you what, and in this case no published list settles it.

Our read

Well rated, and the newer of two versions sold side by side. What we cannot do is tell you how it differs from the original, because the only list we held for it was the original's. If the ingredient order is what decides your purchase, buy the original, where the list is ours to check. If you want the current version the brand is backing, this is it, bought on its rating rather than its label.

Who should skip this

• You want a verified formula. We do not hold one for the 4.0.
• You are switching specifically to avoid something in the original. Nothing we hold shows what changed.
• You want the deepest review record in this line. The original has thousands behind it.

Frequently asked questions

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