What a skin booster is
The term covers several different products. What they share is the aim of changing how skin behaves, not how the face is shaped. None of them fills a hollow.
The classes are not interchangeable. Hyaluronic acid products target hydration. Polynucleotides are used for thin or fragile skin. PDLLA acts slowly on collagen. Which one fits depends on what your skin needs, and on allergies. This guide compares them so you can have a clearer conversation.
Skin boosters in Singapore: the short answer
If your concern is dryness, dullness, crepey texture or fine lines, a skin booster may be worth assessing. If it is hollows or sagging, it is the wrong tool. Products and sessions are described on the skin booster treatment page. Dr Sin Yong examines the skin himself, and ultrasound is used where earlier filler is involved. Diffuse structural loss points to a biostimulator or filler instead.
The main classes compared
| Class | What it is | Tends to suit |
|---|---|---|
| Hyaluronic acid boosters | Non-cross-linked or lightly bonded gel that spreads through tissue planes | Dehydrated, dull skin with fine surface lines |
| Profhilo | High and low molecular weight hyaluronic acid, heat bonded without BDDE | Early loss of firmness and crepey skin |
| Polynucleotides, such as Rejuran | Purified from salmon DNA | Thin or fragile skin and texture |
| PDLLA, such as Juvelook | A resorbable collagen biostimulator | Gradual change in firmness and texture |
| Deep Synergy Booster | Needle-free, delivering actives from the surface with focused ultrasound | People who want no injection. It cannot place product at a chosen depth |
Names you may also see
Hyaluronic acid with vitamins, amino acids, minerals, coenzymes and nucleic acids, placed superficially. Its nickname, the Chanel injection, has nothing to do with the fashion house.
PN refers to longer polynucleotide chains and PDRN to shorter fragments, with different concentration and viscosity.
A scaffold that prompts collagen gradually. It is classed as a collagen biostimulator, not a booster, and it cannot be dissolved.
These are not a skin booster type. Topical exosome products are applied to the surface, usually after laser or microneedling, and human evidence is early. See the exosome guide.
How treatment is carried out
Can boosters be combined?
Sometimes. Classes doing different jobs may be planned together or in stages. Two boosters from the same class rarely add much. Boosters can sit alongside lasers, energy-based lifting or subcision, but they do not replace those treatments. A recent laser or peel can change timing. Several visits may be planned, and the plan is reviewed after each phase. No session count is fixed in advance.
What skin boosters cannot do
Hollows and lost volume are assessed for filler. See volume treatment.
Descended tissue or heavy skin is assessed for energy-based lifting or surgery. See the skin tightening guide.
Pigment needs its own diagnosis. Read the pigmentation guide.
Tethered scars need subcision first.
Who should wait or avoid it
Active infection, cold sore, acne flare or eczema at the sites. Pregnancy or breastfeeding. A recent laser, peel, filler or thread in the area.
Allergy to a component, such as hyaluronic acid or lidocaine, or fish in the case of polynucleotides.
Bleeding tendency or blood thinners, autoimmune disease, severe allergy history or keloid tendency.
Risks to discuss first
How long it takes, and what happens if you stop
Collagen-directed classes such as PDLLA and polynucleotides work gradually, so they are judged later. Studies of individual products have reported better hydration and elasticity, but no duration can be promised. If you stop, skin returns toward its untreated state. A 2023 systematic review of injectable hyaluronic acid for facial skin quality covered 13 studies. It called the evidence promising and asked for larger randomised trials. A 2024 narrative review of polynucleotides reported mixed findings and said more research is needed. These reviews measured skin quality, not volume, lift or pigment. Neither review can tell you how your own skin will respond, and results vary.
How fees are worked out
Cost follows an individual plan. It depends on the area, what assessment finds, the class and amount of product, any combination with laser, energy-based treatment or filler, and staging. A written quote comes after assessment and before anything is agreed. Treatment for appearance is not claimable under MediSave or MediShield Life, and most private insurance excludes it. Aftercare is given in writing.