Sidmool prints the LHA content of this peeling gel on the label at 100 ppm, and that single number turns a marketing name into a confession. One hundred parts per million is 0.01 percent. Capryloyl salicylic acid, the lipohydroxy acid that L'Oréal patented and Korean brands have lately rebranded as 'fourth-generation LHA', is a genuinely gentle keratolytic at the 0.3 to 2 percent used in leave-on exfoliants, where it loosens dead cells one layer at a time at skin's natural pH. At one hundredth of a percent, in a gel that is on the face for under a minute before being rinsed, it does nothing that anyone could measure. Sidmool, a Korean independent that has printed its doses since it grew out of a DIY community in 2000, tells you this because it tells you everything, and the honesty is admirable even when it undercuts the product's own title. What is left, once the LHA is set aside, is a cellulose gommage gel, and that is how it should be reviewed.
Gommage gels are one of K-beauty's most beloved and most misunderstood formats. The mechanism is in the fourth ingredient: cellulose, plant fibre, suspended in a carbomer gel. Spread the gel on dry skin, massage, and as water evaporates and the polymer is worked, the fibres clump into soft white rolls that look for all the world like sheets of dead skin lifting away. Most of what you see is the gel. Some genuine loose corneocytes, sebum and surface debris are caught up in the rolls, and the massage itself provides mild mechanical exfoliation, so skin does feel smoother and look a touch brighter after rinsing. The effect is real, modest and temporary, lasting a day or two until the surface accumulates again, and it does not build with repeated use the way an acid does. Knowing that, the pleasure of watching the pills form is harmless; believing the pills are your skin is the format's oldest illusion.
What Sidmool has done well here is the base around the cellulose. Job's tears seed water, the Korean yulmu, is declared at 10 percent, a grain water with a centuries-old East Asian association with smooth, bright skin and a mild humectant and soothing profile. Sodium hyaluronate and sodium polyglutamate keep the rinse-off from leaving skin tight. Dipotassium glycyrrhizate, beta-glucan and allantoin form a soothing trio that matters more here than in a serum, because the only thing that can irritate in this product is the friction of rubbing fibres over the face, and calming ingredients offset exactly that. There is no fragrance, no alcohol, no oil beyond a light ester, and no colour. For a reactive skin that cannot tolerate glycolic pads or salicylic toners, this is an exfoliating ritual it can actually perform.
In use it behaves as gommages do. The clear gel spreads easily over a dry, cleansed face; after twenty or thirty seconds of light circular massage it breaks into white rolls and crumbs; it rinses clean; skin feels smooth, soft and slightly hydrated, with no sting, tingle or redness. The 'Irregularities Zero' of the name is the Korean concern with bumpy, uneven texture, and on the small roughness of a dull forehead or a flaky nose the immediate smoothing is noticeable. On true texture problems, closed comedones, keratosis pilaris on the face, or the scars the name might suggest, it does what a gentle massage does, which is very little. Sidmool's copy about 'egg-like skin' is a traditional turn of phrase rather than a claim about dermal change, and it is fair to read it that way.
The limitations follow from the mechanism. Because the smoothing is mechanical, the sensible cadence is once or twice a week, not daily, and it should not share a night with acids, retinoids or a cleansing brush. Acne-prone skin should be careful, since massaging fibres over active breakouts can spread inflammation, and anyone with rosacea or a compromised barrier will find friction the wrong tool regardless of how soothing the gel is. The cetyl ethylhexanoate is a mild ester that strict fungal-acne avoiders may flag, though in a rinse-off it is unlikely to matter.
On price, seventeen dollars for 120 millilitres through Dodoskin, or about 12,800 won at home before shipping, is fair for the category and generous in quantity; used once or twice a week the bottle lasts four to six months. Korean gommage gels from larger brands cost the same and rarely disclose their acid content at all, which is the one respect in which this product is better than its competitors: you know exactly what you are getting, because Sidmool told you.
Sidmool has a quarter century of Korean word-of-mouth, no clinical trials and a house rule of putting the number on the bottle, and this gel is a case where that rule works against the marketing and for the customer. Buy it as a gentle, fragrance-free, soothing gommage for sensitive skin that enjoys the ritual and wants a day or two of extra smoothness; that is a legitimate and pleasant product at a fair price. Do not buy it for the LHA. The label already told you not to.