Service Knowledge · Medical Skincare

Water-Based Facial Treatments — What Do the Different Names Actually Mean?

Different marketing names, one underlying principle, very different providers. This article sorts out the terminology, explains the actual procedure behind it, reviews the real evidence — and answers the question that matters: when is a facial treatment enough, and when do you need more than cleansing?

Reading time8 minTechnical article with source references.

Basis4 studiesTwo randomized, all small — assessed critically.

Core questionCleansing or therapy?The decision that comes before the treatment.

The terminology

One procedure, several names

Anyone searching in Erlangen, Herzogenaurach or Nuremberg for a water-based facial treatment runs into at least three different terms. They mean the same underlying principle but come from different sources — and that’s exactly what creates confusion around price, expectations and quality.

Term	Where it comes from	What it means
Hydrodermabrasion	The medical term used in clinical literature and in the studies cited below	Water-based exfoliation with vacuum extraction and active-ingredient infusion. The neutral umbrella term, independent of any manufacturer.
A well-known trademarked device system	A protected trademark held by a single US manufacturer, heavily marketed since the 2000s	One specific device together with its own serum line. The brand name is often used colloquially as a catch-all for the entire category — the way one facial-tissue brand became shorthand for facial tissues in general.
A widely used generic term	A term many studios and device manufacturers use to describe the same principle without invoking the trademark	Also hydrodermabrasion — usually performed with devices from various manufacturers, with quality that varies considerably.

Practical consequence: the name on the sign tells you nothing about the quality of the treatment. What matters is the active-ingredient solution used, how the vacuum pressure is set, the skin analysis beforehand — and what happens when your skin needs more than cleansing.

How it works

What actually happens in the three phases

All systems work with a handpiece that simultaneously delivers and extracts fluid through a spiral channel. The sequence is always the same:

1
Loosen

A mild acid or enzyme solution — glycolic acid, lactic acid, salicylic acid at low concentration — softens the bonds between dead skin cells and loosens sebum within the pores.

2
Extract

Vacuum suction draws out the loosened cells, sebum plugs and residue across the whole area — more evenly than manual extraction and without the mechanical irritation of a crystal peel.

3
Infuse

A serum containing hyaluronic acid, antioxidants or peptides is applied under light pressure — at the moment the skin is most receptive to absorbing it.

The key point: the procedure works in the epidermis — the outermost layer of skin. It removes dead skin cells, cleanses pores and improves the uptake of skincare actives. It does not reach the dermis, where collagen is formed — and that distinction is often blurred in marketing.

Evidence

What the studies show — and what they don’t

The evidence base is modest: four relevant papers, two of them randomized, all with small sample sizes. That’s not a reason to dismiss the procedure — it’s a reason to keep its claims within bounds.

Freedman BM, 2008. Hydradermabrasion: an innovative modality for nonablative facial rejuvenation. J Cosmet Dermatol 7(4):275–280. PMID 19146604. Randomized, 20 women, six treatments: in the treated group, epidermal thickness, papillary dermal thickness and polyphenolic antioxidant levels increased measurably. The control group, which received the same serum applied manually only, showed no change. This is a direct comparison showing that the combination of exfoliation and pressure-driven application achieves more than the serum alone.
Kim SJ et al., 2015. The effect of physically applied alpha hydroxyl acids on the skin pore and comedone. Int J Cosmet Sci 37(5):519–525. PMID 26032934. Randomized split-face study, 23 women: a 4% fruit-acid solution combined with vacuum suction reduced open and closed comedones significantly more than the same solution without suction after one week; pore area and sebum production decreased only in the combination group.
Storgard R et al., 2022. Efficacy and tolerability of a hydradermabrasion clarifying treatment series in active acne vulgaris. J Clin Aesthet Dermatol 15(12):42–46. PMID 36569524. Open-label study, 20 patients with mild-to-moderate acne, six treatments over twelve weeks: the proportion with clear or almost-clear skin rose from 20 to 65 percent. Limitation: not blinded, no control group, one author employed by the device manufacturer.
Razi S et al., 2024. Hydradermabrasion through the lens of line-field confocal optical coherence tomography. Skin Res Technol 30(4):e13684. PMID 38558475. Eight volunteers, imaging follow-up: the stratum corneum was thinner immediately after treatment and more evenly structured after two weeks than before. At the two-week mark, no change in the amount or quality of dermal collagen fibers was visible.

In summary: cleansing, smoothing, better active-ingredient absorption and an effect on blackheads/whiteheads are supported by evidence. Collagen building, deep wrinkle reduction, lasting pore reduction and acne therapy in the medical sense are not.

Marketing check

Four claims worth reading critically

“Collagen building” or “anti-aging.” The 2024 imaging study found no change in collagen fibers after two weeks. Building collagen requires procedures that reach the dermis — microneedling, radiofrequency, or medical peels at a certain depth.
“Pore reduction.” Pores get cleaned, which makes them look smaller. Anatomical pore size is genetically determined and doesn’t change. The visual effect lasts weeks, not months.
“Acne treatment.” For non-inflammatory blackheads and whiteheads, the effect is supported by evidence. For inflammatory acne with papules and pustules, the mechanism is missing — inflammation and bacteria aren’t addressed by suction. Prescription-strength actives exist for that.
“Medical treatment.” Hydrodermabrasion is a cosmetic treatment, regardless of who performs it. What makes it medical isn’t the device — it’s what happens around it: assessment, screening for contraindications, and the ability to move to a different level of care if needed.

The real question

When is cleansing enough — and when isn’t it?

Nearly every cosmetic studio today offers some form of water-based facial treatment. The difference isn’t in the device — it’s in what happens when your skin turns out to need more than that. In our practice, that’s a stepped logic with four levels:

If your skin looks like this	Then this is the right level	Who performs it
Dull complexion, rough texture, blackheads in the T-zone, congested pores — no inflammation	Hydrodermabrasion or manual deep cleansing	Aesthetician, after skin analysis
Thickened, keratinized skin; superficial unevenness; epidermal pigmentation	Microdermabrasion or medical peel	Aesthetician or physician, depending on intensity
Inflammatory acne with papules and pustules, late-onset acne, cycle-related flares	Acne clinic — guideline-based medical therapy, lab work if needed	Physician only
Acne scarring, deeper wrinkles, skin laxity, structural changes	Microneedling, deeper peels, collagen-stimulating procedures	Physician

A cosmetic studio can offer level 1 and, in part, level 2. Level 3 requires a prescription; level 4 requires medical procedures. Anyone who only has one level available has to recommend that level — even when it isn’t the right one. That’s not a criticism of aestheticians; it’s a structural limit of their scope of practice.

Dr. Thomas Ackermann Practice · Methodological Stance

I have no interest in selling you a facial treatment that doesn’t solve your problem. If cleansing is enough, I’ll say so — and it’s the least expensive level. If it isn’t enough, I can offer the next step myself instead of sending you elsewhere. That’s the only difference that matters.

— Dr. med. Thomas Ackermann · Specialist in Anesthesiology

Frequently asked questions

What system do you use?

A hydrodermabrasion system from a medical-device manufacturer that works on the three-step principle: loosen, extract, infuse. Which brand is printed on the device matters less for the result than the active-ingredient solutions used, the assessment beforehand, and the question of what happens when your skin needs more than cleansing.

Is a more expensive device better?

I don’t know — there are no comparison studies between manufacturers. The available research examines the underlying principle, not the brand. What measurably differs is the active-ingredient solution used, the experience of the person performing the treatment, and the assessment beforehand.

How often should I have the treatment?

The studies that showed effects used six treatments spaced one to two weeks apart. That’s a lot for everyday life. Realistically: for congested skin, a series of four treatments every three to four weeks, then maintenance every six to eight weeks. A single session gives visible freshness but won’t change your skin’s overall condition.

What’s the difference from microdermabrasion?

Microdermabrasion exfoliates dry, mechanically — with crystals or a diamond tip. Hydrodermabrasion loosens with fluid and extracts by suction. It’s gentler and better suited to sensitive or dry skin; microdermabrasion works more strongly on thickened, keratinized skin.

Can I have this done if I have rosacea?

In some cases, yes, during an inflammation-free interval — not during a flare. Rosacea-prone skin reacts sensitively to acids and mechanical stimulation. That needs to be assessed beforehand — it’s one of the reasons skin analysis isn’t optional.

Why do you talk about hydrodermabrasion rather than a brand name?

Because a brand name tells you nothing about what your skin actually receives. Medical websites are also held to stricter advertising standards than cosmetic studios. That’s why I describe the procedure itself — so you can compare it with any other offer.