Skinboosters — injectable products designed to improve skin quality from within the dermis — have become a commonly discussed category of aesthetic treatment in Singapore.
Several distinct products fall under this general term, and they differ meaningfully in their active ingredients, mechanisms of action, and clinical applications.
This article provides a factual overview of three products: High and Low Molecular Weight HA (a hyaluronic acid bioremodeller), Polynucleotides (a polynucleotide injectable), and Cross-linked HA (a lightly cross-linked hyaluronic acid product). Understanding what each product does, and how it differs from the others, helps patients engage in a more informed consultation with their treating doctor.
What Is a Skinbooster, and How Does It Differ from a Dermal Filler?
The term "skinbooster" is used informally to describe a range of injectable products that aim to improve intrinsic skin quality — hydration, elasticity, and texture — rather than to alter facial volume or structure.
The distinction from a conventional volumising dermal filler is clinically meaningful. Volumising fillers are typically composed of cross-linked hyaluronic acid formulated to maintain a specific shape within the tissue, creating lift or volume at the injection site. Skinboosters, by contrast, are formulated to integrate into the dermis and act on the skin's biological environment — stimulating collagen production, improving hydration, or supporting cellular repair — rather than adding visible structural volume.
The result is not a change in facial contour, but a change in how the skin functions and appears: greater hydration, improved elasticity, and, over time, a more resilient skin structure. This distinction is important for setting realistic expectations.
How Each Product Works
High and Low Molecular Weight HA
Hyaluronic Acid BioremodellerHigh and Low Molecular Weight HA contains a high concentration of hyaluronic acid (HA) composed of both high-molecular-weight and low-molecular-weight HA in a thermally stabilised complex. Unlike conventional cross-linked fillers, High and Low Molecular Weight HA is not designed to maintain shape; it integrates into the tissue and spreads from each injection point, creating a broad zone of biological activity.
Published clinical data on High and Low Molecular Weight HA describes two mechanisms: first, deep dermal hydration from the HA itself; second, stimulation of collagen and elastin production as a biological response to the product. Studies have reported stimulation of multiple collagen types (I, III, IV, and XVII) and elastin. These published findings inform how High and Low Molecular Weight HA is used clinically, though individual responses vary.
High and Low Molecular Weight HA is typically administered using the BAP (Bio Aesthetic Points) technique — five standardised injection points per side of the face — selected to support even distribution through the tissue. A standard course typically involves two sessions spaced approximately four weeks apart, with maintenance sessions thereafter as clinically appropriate.
High and Low Molecular Weight HA is generally used in patients experiencing generalised loss of skin hydration and elasticity, and is also applied to the neck and hands. Suitability depends on individual clinical assessment.
Polynucleotides
Polynucleotide (PN) InjectablePolynucleotides is a polynucleotide (PN) injectable derived from salmon-origin polydeoxyribonucleotide (PDRN). PDRN works through a different biological mechanism than hyaluronic acid: it interacts with adenosine receptors in tissue, stimulating cellular repair and regeneration processes. This mechanism is distinct from hydration-based products.
Clinical studies on PDRN-based products describe effects including promotion of tissue repair, reduction of inflammation, and support for collagen and elastin synthesis via cellular activity. These properties make Polynucleotides relevant in clinical contexts where skin repair or regeneration is a primary goal — for example, in skin that has been damaged by chronic sun exposure, or as part of a broader acne scar treatment protocol. Individual responses vary.
Polynucleotides is available in several formulations for different clinical purposes. Polynucleotides I (a lower-viscosity variant) is frequently used in the periorbital area to address under-eye skin quality. Polynucleotides S, a higher-viscosity variant, is used in the context of acne scarring. Treatment typically involves a series of sessions, with cumulative effects developing over time.
Cross-linked HA
Lightly Cross-Linked Hyaluronic AcidCross-linked HA is a hyaluronic acid injectable from the Juvederm range, formulated differently from the range's volumising products. It uses a lightly cross-linked HA gel that is flexible enough to integrate into the dermis without adding visible structural volume, while providing sustained hydration at the injection site.
Clinical data submitted as part of Skinvive's regulatory approval describes improvements in skin smoothness, hydration, and elasticity, with a duration of effect of up to nine months from a single treatment session in study conditions. Individual results vary. Skinvive is administered via multiple small-volume intradermal injections across the treatment area, and is used on the face, neck, décolletage, and hands.
Skinvive is generally considered for patients seeking improvement in skin texture and sustained hydration. Its single-session protocol and longer reported duration distinguish it clinically from other skinbooster options that require more frequent repeat sessions.
Comparative Overview
The following table summarises how these three products differ in mechanism and clinical application. It is a general factual reference and does not account for individual patient factors.
| Feature | High and Low Molecular Weight HA | Polynucleotides | Cross-linked HA |
|---|---|---|---|
| Active ingredient | High + low MW hyaluronic acid (thermally stabilised) | Polynucleotides / PDRN (salmon-derived) | Lightly cross-linked hyaluronic acid |
| Primary biological mechanism | HA hydration + collagen/elastin stimulation | Cellular repair and tissue regeneration via adenosine receptors | Sustained intradermal hydration |
| Improves hydration | Yes | Yes (secondary effect) | Yes (primary effect) |
| Stimulates collagen/elastin | Yes — published clinical data supports this | Yes — via cellular repair mechanisms | Moderate |
| Anti-inflammatory / repair properties | Mild | Yes — a key clinical characteristic | Mild |
| Common clinical applications | Generalised skin quality, hydration, elasticity | Skin repair, under-eye skin, acne scar protocols | Skin smoothness, sustained hydration |
| Typical treatment protocol | 2 sessions approx. 4 weeks apart; maintenance thereafter | Series of 3–4 sessions; maintenance thereafter | Single session; repeat as clinically indicated |
| Published duration of effect | ~6 months (with maintenance) | Cumulative — develops over treatment course | Up to 9 months (study data; individual results vary) |
| Treatment areas | Face, neck, hands | Face, under-eyes, areas of scarring | Face, neck, décolletage, hands |
Note: Duration of effect and clinical outcomes described above are drawn from published clinical study data and general clinical reference. Individual responses vary. This table is not a substitute for a clinical consultation.
What Skin Concerns Is Each Product Typically Used For?
The following is a general clinical reference. At Mirae, product selection is always based on a thorough in-person assessment by Dr Cherie Lau.
High and Low Molecular Weight HA is typically considered for:
- Patients experiencing loss of skin elasticity and firmness, particularly in the mid-face and neck
- Generalised skin dehydration and reduced skin quality
- Early skin laxity without significant structural volume loss
- Patients seeking an improvement in overall skin quality as part of a broader skin maintenance plan
Polynucleotides is typically considered for:
- Skin presenting with signs of damage or accelerated ageing — for example, from significant sun exposure or scarring
- Under-eye skin quality concerns — fine lines, crepiness, or discolouration with a skin quality component
- As part of an acne scar treatment protocol, particularly for shallow scarring and post-inflammatory changes (typically using Polynucleotides S)
- Patients where a repair and regeneration focus is clinically relevant
Cross-linked HA is typically considered for:
- Skin texture irregularities and persistent surface dehydration
- Fine lines associated with dehydration rather than structural volume loss
- Patients who prefer a lower-frequency treatment protocol
- Skin quality improvement on the neck, décolletage, and hands alongside the face
Can Skinboosters Be Used Alongside Other Treatments?
Skinboosters are frequently incorporated into broader skin treatment plans alongside other modalities. For example, Polynucleotides is sometimes used as part of an acne scar treatment protocol alongside subcision and laser treatment, given its regenerative properties. High and Low Molecular Weight HA is sometimes used alongside energy-based treatments such as HIFU or RF that address structural laxity, with the skinbooster contributing to skin quality improvement.
Whether any combination of treatments is appropriate depends entirely on individual clinical assessment. All treatment plans at Mirae are developed by Dr Cherie Lau following an in-person consultation.
Setting Realistic Expectations: How Results Develop Over Time
Skinboosters do not produce immediate structural changes. Some patients notice improvements in skin hydration and surface quality within a few weeks of treatment; more substantive changes — such as improvements in elasticity and fine line appearance — develop gradually as biological processes are triggered by the treatment.
This means that a realistic timeline for seeing results from a skinbooster course is typically weeks to months, not days. The pace and extent of improvement varies between individuals depending on factors including baseline skin condition, age, and the specific product used. Realistic expectations regarding timeline, number of sessions, and maintenance requirements should be discussed during the consultation.
Questions to Discuss During Your Consultation
A consultation for skinbooster treatment should typically cover:
- What is the primary skin concern — hydration, elasticity, texture, or general quality?
- Are there specific areas of concern, such as the under-eyes or neck?
- Is there a history of skin damage, scarring, or reactive skin that may influence product selection?
- What other treatments are currently part of your skin plan, and how might a skinbooster complement them?
- What is a realistic treatment frequency given your schedule and clinical needs?
All consultations are conducted by Dr Cherie Lau with the goal of providing patients with a clinically accurate and honest assessment of what may be appropriate for their individual skin.
Key Takeaway
High and Low Molecular Weight HA, Polynucleotides, and Cross-linked HA are each distinct products with different active ingredients, mechanisms, and clinical applications. The right choice depends on your specific skin concerns, condition, and goals — all of which are assessed by Dr Cherie Lau during an in-person consultation at Mirae Medical Aesthetics.
Medical Disclaimer: This article is intended for general educational purposes only. It does not constitute medical advice, a diagnosis, or a recommendation for any specific treatment. The information provided reflects general clinical knowledge and is not a substitute for an in-person consultation with a licensed aesthetic doctor. Individual suitability for any treatment can only be determined following a thorough assessment of each patient's skin concerns, medical history, and clinical presentation. Results from any aesthetic treatment vary between individuals and cannot be guaranteed. Please consult a qualified and licensed medical professional before proceeding with any aesthetic procedure.
Have Questions?
Speak with Dr Cherie Lau
Book a personalised consultation to discuss your concerns and explore the right treatment approach for you.
Book Your Consultation