Forty-six point six percent collagen. It's the kind of number designed to stop you mid-scroll, and Mary & May prints it proudly on the White Collagen Cleansing Foam because, commercially, it works. A cleanser that's nearly half collagen sounds like it should be doing something profound to your skin. The reality, as with almost every collagen-labeled product, is more modest and more interesting than the headline suggests — but in this case the high collagen content does genuinely change how the cleanser feels, even if it isn't firming your face the way the marketing hints. Understanding that gap is the key to knowing whether this belongs in your routine.
Strip away the collagen story for a second and look at the engine. Sitting just below the collagen at the top of the list are myristic, palmitic, stearic and lauric acids, saponified with potassium hydroxide — a classic potassium-soap system, the same proven approach behind countless Korean foam cleansers. This is what actually cleans: it whips into a dense, creamy, satisfying foam that lifts oil, sunscreen and the day's grime efficiently. If you love the feeling of a thorough, properly clean face, this delivers that without question. It's a real cleanser, not a gentle milk pretending to be one.
Where the collagen earns its place is in the afterfeel. A bare potassium-soap foam tends to leave skin squeaky and tight because the alkaline base disrupts the surface. Here, the enormous collagen-extract content, plus glycerin and a little sodium hyaluronate, cushions that effect — the collagen acts as a film-forming conditioner that softens the wash and leaves skin feeling smoother and less stripped than you'd expect from a soap cleanser. There's also 1 percent niacinamide, which contributes a mild brightening and barrier-supportive note. The result is a cleanse that feels more pampering and conditioned than a standard foam, which is a genuine, noticeable benefit even if it's a textural one rather than a treatment one.
But honesty has to enter on two fronts. First, the collagen is not firming or rebuilding your skin. In a rinse-off product that's on your face for seconds, collagen molecules — far too large to penetrate anyway — simply cushion the wash and go down the drain. The 46.6 percent is real and it does soften the experience, but treat it as a feel-good feature, not an anti-aging treatment. Second, this is still fundamentally an alkaline soap cleanser. The collagen and humectants soften the blow, but the underlying pH is higher than skin-neutral, which means dry, sensitive, eczema-prone or barrier-compromised skin can still find it tightening. It's gentler than most soap foams, but it's not a low-pH, barrier-friendly cleanser, and it shouldn't be mistaken for one.
There are a couple of other things worth flagging. The formula contains fragrance, mild but present, which is another reason fragrance-sensitive skin should be cautious. And notably, unlike much of Mary & May's range — which trades heavily on vegan, EWG-green credentials — this White Collagen cleanser is not vegan: it contains both collagen and beeswax. That's not a flaw in itself, but if you came to Mary & May specifically for its vegan lineup, this product sits outside it, and that's worth knowing. It is still cruelty-free.
Value is a clear strength. At under thirteen dollars for 150ml, it's firmly budget-friendly, and because the foam is dense and efficient a little goes a long way, stretching the tube over a few months. As a second cleanse after an oil cleanser, or a standalone morning wash for oily and combination skin, it's an easy, pleasant daily driver. The conditioned afterfeel makes it feel a touch more premium than its price, which is exactly the kind of small luxury an affordable cleanser can offer.
It's worth a brief word on where soap-based cleansers like this sit in the current landscape, because the category has quietly become a bit of a battleground. The low-pH gentle-cleanser camp has, with good reason, become the default recommendation for most skin types, and a traditional potassium-soap foam can feel like a throwback by comparison. But there's still a real constituency for the deep, satisfying clean a soap foam provides — oily skin that produces genuine excess sebum through the day, makeup-and-sunscreen wearers who want a confident second cleanse, people who simply dislike the slightly under-cleaned feeling some gentle washes leave. For that group, the question isn't soap versus syndet in the abstract; it's which soap foam treats their skin most kindly. The collagen-and-humectant conditioning here is a genuine answer to that, making this a more considerate version of a format some skin types still legitimately prefer.
So the verdict settles comfortably. If you have normal, combination or oily skin and you want a thorough but conditioned, creamy-foaming cleanser that won't leave you feeling stripped, this is a likeable, well-priced option — just buy it for the satisfying cleanse and the soft afterfeel, not for any collagen-driven firming. If your skin is dry, sensitive or barrier-compromised, or you specifically need a vegan or fragrance-free wash, this isn't your match, and a low-pH gentle cleanser will serve you better. Within its lane, though, it does a genuinely nice job of making a soap cleanse feel kinder than it has any right to.
