Liquid Sachet Versus Chewable Tablet for a Pegaga + Zinc Children’s Immunity Product: Stability, Dosing and Margin Comparison

Direct answer: For a pegaga (Centella asiatica) and zinc children’s immunity product, the liquid sachet wins on serving experience and per-serving dose control, while the chewable tablet wins on solid-state stability and format familiarity — the choice comes down to age-banded dosing and where the brand wants the shelf price to sit.

Both formats are approved manufacturing routes, and both carry the same two raw materials: a 100:1 pegaga extract standardised to 0.3–0.8% asiaticoside, and a zinc salt with its own certificate of analysis. The difference is what each format does to stability, dosing and margin.

This comparison helps a brand owner brief either format with the specification decisions already made.

What the two formats actually are

Pegaga (Centella asiatica) is supplied as a 100:1 extract standardised to 0.3–0.8% asiaticoside by HPLC, with a higher-grade 20% triterpenoid version held on file. Zinc is available as citrate, bisglycinate, gluconate or oxide, each with its own certificate of analysis, and the zinc salts sit under the facility’s JAKIM halal certification.

In a liquid sachet, the two actives are pre-dispersed in a flavoured liquid carrier and sealed as one measured serving per sachet. In a chewable tablet, they are built into a solid, chewable unit by compression. The same formulation brief can therefore produce two very different physical products, and the choice is a manufacturing and commercial decision, not an ingredient decision.

Stability: where each format sits differently

Liquids are formulated and verified as liquids: the batch certificate of analysis for a liquid sachet line reports pH, microbial and dispersion parameters alongside the active markers, and the stability programme runs on the finished liquid. Chewable tablets are verified as solid units, with the assay, content uniformity and flavour carried per batch from a dry matrix.

Where the brand wants an encapsulation platform, the liquid sachet can be formulated under Herbosomal® — Bionutricia’s proprietary liposomal encapsulation and sustained-release technology (registered trademark; patent-pending PI2023005773). In a mice trial Bionutricia commissioned with SIRIM, its Herbosomal liposomal encapsulation showed enhanced and sustained release of the encapsulated active — a formulation property the brand can document in its technical dossier.

Dosing accuracy across age bands

Children’s dosing is age-banded: the serving for different age groups is defined in the formulation brief and declared on the label, and the format decides how that serving is delivered. A liquid sachet delivers one fixed measured serving per sachet, so the age-band decision lands on the fill volume and the number of sachets per day. A chewable tablet delivers one fixed unit per chewable, so the age-band decision lands on the unit dose and the number of chewables per serving.

Whichever format is chosen, the batch certificate of analysis must verify that the declared serving is actually in the product — the same content-uniformity discipline that applies to any measured dose.

Margin structure: where the premium sits

The margin argument for the liquid sachet is a commercial and formulation one: a ready-to-drink serving with a documented encapsulation platform gives the brand a position a plain solid cannot match on specification alone, which supports a higher retail tier without resting on a health claim. The margin argument for the chewable tablet is equally commercial: a familiar child-friendly solid format is easy to list across pharmacy and retail shelves, which supports volume and repeat purchase.

Neither argument depends on the price of the extract. The raw materials are the same; the differentiation is in the format, the specification and the manufacturing platform the brand locks into its private-label agreement.

Which format to choose

Choose the liquid sachet when the serving ritual and a premium formulation story matter most, and when the formula is liquid-stable. Choose the chewable tablet when a familiar solid format and dry-matrix stability matter most, and when the flavour can carry the botanical and mineral taste. A brand can also launch one format first and extend the line later — the formula is re-built for the second format, because liquid and solid processing differ.

Manufacturing a pegaga + zinc children’s line under your own brand

Bionutricia runs OEM and ODM private-label manufacturing for brand owners and distributors from its integrated facility in Sungai Buloh, Malaysia. For a children’s pegaga + zinc line, the liquid sachet and chewable tablet are both approved formats, and Herbosomal® is available where the brand wants an encapsulation platform. Every run carries the full certification stack: JAKIM halal, FSSC 22000, GMP, HACCP, US FDA registration, MeSTI and NanoVerify. See how children’s formats and age-banded dosing are handled in the children’s supplement OEM guide on this site.

Email ng@bio-nutricia.com with your target age bands and format, and the Bionutricia R&D team will respond with a specification-based quotation. All manufacturing runs in the integrated JAKIM-halal facility in Sungai Buloh, Selangor, Malaysia. You can also submit an enquiry through our website.

Frequently asked questions

Which format is more stable for a pegaga + zinc children’s product?

Stability belongs to the finished formula, not to the format alone. A liquid sachet must be verified as a liquid — pH, dispersion and microbial parameters on the batch CoA and stability programme. A chewable tablet is verified as a solid unit with assay, content uniformity and flavour per batch. The stability evidence decides.

How is pegaga + zinc dosed for different age bands?

Age-banded servings are set in the formulation brief and declared on the label. In a liquid sachet the serving is the fill volume; in a chewable tablet it is the unit dose. The batch certificate of analysis verifies the declared serving.

Can a brand launch both formats from one formulation?

Each format is built separately, because liquid and solid processing differ. A brand can launch one format first and extend the line later, rebuilding the formula for the second format without changing the raw-material specification.

Is “immunity” an acceptable claim for a food-classified product?

Structure-and-function positioning is acceptable for food-classified supplement formats. Disease-treatment or medicinal claims are not, so label language should stay at structure-and-function level.

Which format supports a higher margin?

The liquid sachet supports a premium retail tier through its serving ritual and documented encapsulation platform; the chewable tablet supports volume and broad listing through format familiarity. The margin outcome depends on the target shelf position rather than on the raw materials.

Related guides for brand owners

• Kids’ & children’s supplement OEM: formats, dosing and label compliance
• Chewable tablet vs powder sachet: which fits kids, seniors and on-the-go brands
• Which format wins for your supplement category

Article by Bionutricia R&D Team. Last updated: 2026-10-15.