What's the difference between HIFU and RF?

Both tighten skin by heating the deeper layers to stimulate collagen, but they use different energy. HIFU (high-intensity focused ultrasound) delivers focused ultrasound energy to precise depths, while RF (radiofrequency) uses electromagnetic energy to heat a broader area. HIFU is often described as a deeper, more targeted lift; RF as a gradual, comfortable overall tightening. Many people respond well to either, and the best choice depends on your skin and goals.

Is 'gluta' the same as a vitamin drip?

Not exactly. 'Gluta' refers to glutathione, an antioxidant associated with brightening and a more even skin tone, often delivered by IV. A vitamin drip is a broader term for IV therapy that can contain various vitamins and antioxidants, sometimes including glutathione. So a gluta drip is one type of vitamin drip, but not all vitamin drips are about brightening.

What does 'non-invasive' actually mean?

Non-invasive treatments don't break the skin or require cutting, stitches, or surgery — things like HIFU, RF, laser facials, and most light therapies. 'Minimally invasive' usually means tiny entry points or injections (such as microneedling or injectables) with little downtime. 'Invasive' refers to surgical procedures. Most clinic-based aesthetic treatments today are non-invasive or minimally invasive.

What is collagen and why do so many treatments target it?

Collagen is the protein that gives skin its structure, firmness, and bounce. Production naturally declines with age, which leads to fine lines, sagging, and thinner skin. Many treatments — HIFU, RF, microneedling, certain lasers — work by gently triggering the skin's natural repair response, which ramps up fresh collagen production over the following weeks and months.

How do I know which treatment is right for me?

Knowing the terminology helps you ask better questions, but the right treatment depends on your specific skin, concern, and goals — and often a combination works best. The most reliable way to decide is a consultation where your skin is assessed in person, rather than choosing based on a name alone.

Glossary

Beauty Treatment Glossary: 50 Aesthetic Terms Explained (2026)

By SOI Clinic·July 9, 2026·12 min read

Aesthetic treatment terms explained — facial treatment at SOI Clinic

Aesthetic clinics throw around a lot of jargon — HIFU, RF, EMS, microneedling, 'gluta drip.' This A-to-Z glossary explains 50 of the most common treatment and skincare terms in plain English, so you always know what you're booking.

Walk into any aesthetic clinic — or scroll beauty TikTok for five minutes — and you'll hit a wall of jargon. HIFU, RF, EMS, LLLT, "gluta drip," microneedling, fractional this, broad-spectrum that. It's easy to nod along and book something without really knowing what it is.

This glossary fixes that. Below are 50 of the most common aesthetic and skincare terms, explained in plain English, grouped so you can find what you need. Bookmark it, and you'll never feel lost reading a treatment menu again.

A note on using this list: knowing the terms helps you ask sharper questions, but the right treatment for you depends on your skin, your concern, and often a combination — which is what a consultation is for.

Skin-tightening & anti-aging technology

1. Collagen — The protein that gives skin its firmness and bounce. Production drops with age, causing lines and sagging. Most "anti-aging" treatments aim to stimulate fresh collagen.

2. Elastin — A protein that lets skin stretch and snap back. Like collagen, it declines over time, contributing to laxity.

3. HIFU (High-Intensity Focused Ultrasound) — Focused ultrasound energy delivered to precise depths beneath the skin to heat tissue and trigger a tightening, lifting response. Non-invasive, no downtime. See 12D HIFU.

4. RF (Radiofrequency) — Electromagnetic energy that heats the deeper layers of skin to stimulate collagen and tighten gradually. Comfortable and good for overall firming.

5. Monopolar RF — A form of radiofrequency that reaches deeper tissue, often used for skin tightening and body contouring.

6. Skin laxity — The clinical term for loose or sagging skin, the thing tightening treatments aim to improve.

7. Lifting — Any treatment effect that visibly tightens and "lifts" sagging areas (jawline, cheeks, brow) without surgery.

8. Non-surgical facelift — An umbrella term for treatments (like HIFU or RF) that produce a lifting, tightening effect without cutting or anesthesia.

9. Thermage — A well-known brand of monopolar RF skin-tightening treatment.

10. Sofwave / Ultherapy — Brand names for ultrasound-based skin-tightening devices in the HIFU family.

Injectables & regenerative treatments

11. Botox (botulinum toxin) — An injectable that temporarily relaxes specific muscles to soften expression lines (forehead, frown, crow's feet). Wears off over months.

12. Dermal filler — Injectable gel (usually hyaluronic acid) that adds volume, smooths folds, or defines features like lips and cheeks.

13. Hyaluronic acid (HA) — A naturally occurring molecule that holds water in the skin for hydration and plumpness. Found in fillers and many skincare products.

14. Profhilo — An injectable made of highly concentrated hyaluronic acid that hydrates and improves overall skin quality and firmness, rather than adding localised volume. See Profhilo.

15. Bio-remodelling — A category of injectable treatment (Profhilo is the best-known) that improves skin quality and stimulates collagen across an area rather than filling a single line.

16. Skin booster — Injectable hydration treatments that deliver HA and nutrients into the skin for glow and quality, not volume.

17. Mesotherapy — Microinjections of vitamins, antioxidants, or other actives into the skin to nourish and rejuvenate.

18. PRP ("vampire facial") — Platelet-rich plasma drawn from your own blood and reapplied to stimulate skin or scalp rejuvenation.

Lasers & light-based treatments

19. Laser — Concentrated light targeted at specific structures in the skin (pigment, blood vessels, hair follicles) for a precise effect.

20. Carbon Laser ("carbon facial" / "Hollywood peel") — A carbon lotion is applied then targeted with laser to exfoliate, brighten, minimise pores, and even out tone. See Carbon Laser.

21. Fractional laser — A laser that treats the skin in tiny "fractions," leaving surrounding tissue intact for faster healing while resurfacing texture and scars.

22. Ablative vs non-ablative — Ablative lasers remove the surface layer for dramatic resurfacing (more downtime); non-ablative lasers heat below the surface without removing it (less downtime).

23. IPL (Intense Pulsed Light) — Broad-spectrum light (not a true laser) used for pigmentation, redness, and sun damage.

24. OPT (Optimal Pulse Technology) — An advanced, more controlled evolution of IPL, used in treatments like laser hair removal. See OPT Laser Hair Removal.

25. LLLT (Low-Level Laser Therapy) — Gentle red and infrared light that stimulates cell function — used for hair regrowth and healing. See Laser Hair Regrowth.

26. LED light therapy — Coloured LED light (red for repair, blue for acne bacteria) applied to the skin to treat specific concerns gently.

27. Red light therapy — A specific LED/laser wavelength range linked to collagen stimulation, healing, and hair growth. See Hair Regrowth Therapy.

28. Blue light therapy — Light that targets acne-causing bacteria and can help calm breakouts. Used in Anti-Acne treatments.

Facials & resurfacing

29. HydroFacial / Hydradermabrasion — A multi-step facial that cleanses, exfoliates, extracts, and hydrates using water-based technology. Deep clean, no downtime. See HydroFacial.

30. Microdermabrasion — Mechanical exfoliation that buffs away the outer layer of dead skin to brighten and smooth.

31. Dermaplaning — Gentle scraping with a blade to remove dead skin and fine "peach fuzz" for a smooth, glowing finish.

32. Chemical peel — An acid solution applied to exfoliate the skin's surface, improving tone, texture, and pigmentation. Strengths range from light to deep.

33. Microneedling — Tiny needles create micro-channels in the skin to trigger collagen production and improve texture, scars, and pores.

34. Oxygen facial — A facial that infuses the skin with oxygen and serums for hydration and a fresh, plumped look. See Oxygen Facial.

35. Extraction — The manual or assisted clearing of clogged pores and blackheads during a facial.

36. Exfoliation — Removing dead surface skin cells (physically or chemically) to reveal brighter, smoother skin.

Pigmentation, brightening & body

37. Hyperpigmentation — Patches of skin that are darker than surrounding areas, from excess melanin (includes sunspots and post-acne marks).

38. Melasma — A specific, often stubborn type of hyperpigmentation forming symmetrical patches, common in Filipino skin and linked to sun and hormones. See Melasma Reduction.

39. Melanin — The natural pigment that gives skin its colour; overproduction causes dark spots and uneven tone.

40. Glutathione ("gluta") — An antioxidant associated with brightening and a more even skin tone, often given via IV drip. See NC24.

41. IV drip / vitamin therapy — Vitamins, antioxidants, and fluids delivered intravenously for hydration, wellness, and skin benefits. See Infinite Drip.

42. Cryotherapy / Cryolipolysis ("fat freezing") — Controlled cold used to target and eliminate stubborn fat cells. (Not currently offered at SOI Clinic.)

43. Body contouring — Any non-surgical treatment that reshapes the body by reducing fat or tightening skin. See 5D RF.

44. EMS (Electromagnetic Muscle Stimulation) — Technology that triggers intense muscle contractions to build tone, used in ab-sculpting treatments. See Ab-Toning.

45. Cellulite — The dimpled skin appearance (usually thighs/buttocks) caused by fat pushing against connective tissue.

Skincare ingredient & label terms

46. Retinoid / Retinol — Vitamin A derivatives that speed cell turnover to improve lines, texture, and acne. Powerful but need careful introduction.

47. Niacinamide — A form of vitamin B3 that calms, strengthens the skin barrier, and helps with tone and oil control.

48. Broad-spectrum SPF — Sunscreen that protects against both UVA (aging) and UVB (burning) rays — essential daily in a sunny climate.

49. Skin barrier — The skin's outer protective layer that locks in moisture and keeps irritants out; a damaged barrier means dryness, sensitivity, and breakouts.

50. Non-comedogenic — A label meaning a product is formulated not to clog pores — useful for acne-prone and oily skin.

How to actually use all this

Terminology is power: it lets you read a treatment menu, ask sharper questions, and spot when a "miracle" is just a rebranded basic. But a name on a list can't tell you what your skin needs. The same concern — say, dull, aging skin — might be best served by a HydroFacial for one person, HIFU for another, and a combination for a third.

So treat this glossary as your decoder, then let a real assessment do the deciding.

Get a personalised treatment plan in BGC or Quezon City

Now that the jargon makes sense, the next step is matching the right treatment to your actual skin and goals. At SOI Clinic we'll assess your skin in person and recommend a plan — no guesswork, no upselling buzzwords.

We have branches in BGC, Taguig and Quezon City, open daily from 10am to 9pm. Browse our treatments or message us on WhatsApp.

This glossary is general educational information, not medical advice. Treatment suitability should always be confirmed with a qualified professional.

Treatments mentioned

HydroFacial→12D HIFU→Carbon Laser→