Dermal Fillers
How to Read a Dermal Filler Specification Sheet: HA, G′, Needle Gauge and Injection Plane
Two dermal filler products can both be described as “cross-linked hyaluronic acid” and still have very different technical profiles. For distributors and professional buyers, the specification sheet is where the comparison should begin.

In This Article
Two dermal filler products can both be described as “cross-linked hyaluronic acid” and still have very different technical profiles. For distributors and professional buyers, the specification sheet is where the comparison should begin.
Product type
Confirm whether the product is a hyaluronic acid dermal filler and whether the manufacturer describes it as monophasic or biphasic. This provides the basic technology context for the rest of the data.
HA concentration
HA concentration is usually expressed in mg/mL. It tells you how much hyaluronic acid is present per milliliter, but it does not by itself tell you how firm, cohesive or supportive the final gel will be.
Cross-linking and processing strongly influence rheology, so buyers should not compare products on concentration alone.
Cross-linking / gel technology
Look for a clear statement of the gel platform. A supplier should be able to keep this description consistent across technical sheets, product pages and private-label documents.
G′
G′ is the storage or elastic modulus and is used to describe elastic resistance to deformation under the test conditions. It is useful for differentiating profiles within the same product family, but values from unrelated suppliers may not be directly comparable unless the measurement methods are aligned.
Needle gauge
Needle gauge is part of the product configuration and handling profile. Check whether the needle is included, whether the gauge is consistent with the technical sheet and whether private-label projects use the same or an approved alternative configuration.
Injection plane / product positioning
Technical information may state an injection plane or intended positioning. This should be consistent with the product’s rheological profile and official documentation. Buyers should avoid rewriting clinical claims beyond what the manufacturer can support for the target market.
Volume
Record the exact fill volume. VITRIONA currently offers 1.1 mL and 10 mL versions across DEFINE, LIFT and SCULPT. When the corresponding formulation is the same across two formats, that relationship should be stated consistently.
Shelf life and storage
Storage temperature, light exposure, freezing restrictions and single-use instructions are operationally important. Warehouses, distributors and clinic buyers need this information for inventory planning.
A good specification sheet creates consistency
The objective is not to show as many numbers as possible. A useful technical sheet gives buyers a stable reference that matches the product page, label, IFU, quotation and available product documentation.
Compare VITRIONA’s DEFINE, LIFT and SCULPT technical profiles to see how one product family can be structured across different support levels.
References
For professional and B2B informational purposes only. Product indications and technical documentation vary by market.
VITRIONA B2B SUPPORT