Amriel Co Germall Plus Liquid Preservative, 30 mL for Water-Based Skincare

Making a lotion, cream or serum at home? Amriel Co Germall Plus Liquid is a broad-spectrum preservative for skincare and other water-based formulations. Its role is to help protect a finished DIY product against bacteria, yeast and mould, supporting stability and shelf life when it is used as directed.

The 30 mL liquid format is suited to small-batch beauty projects, from face care to shampoos, conditioners and body sprays. Why choose a dedicated preservative? It’s designed for formulations with a water phase, giving makers a practical way to include antimicrobial protection in their own recipes.

Why it makes sense

Water-based products can benefit from a preservative that works across a range of common DIY formulations. Germall Plus Liquid is described as effective at 0.1–0.5% of the total formulation weight and within a pH range of 3.0–8.0. That makes it adaptable to recipes such as lotions, creams and serums, while the broad-spectrum protection targets bacteria, yeast and mould.

For a maker preparing a small batch of face lotion or serum, the preservative can be measured into the finished formulation and mixed through for even distribution. Compared with making a water-based product without a dedicated preservative, this gives the recipe a specific preservation step. Use the percentage and pH range as part of your formulation process rather than treating the preservative as a substitute for clean equipment and suitable storage.

Key takeaways

Germall Plus Liquid is intended for water-based skincare and cosmetic recipes, including creams, lotions, serums, shampoos, conditioners and body sprays. The 30 mL size offers a liquid format for DIY formulation work, while the recommended use rate of 0.1–0.5% lets you calculate the amount according to the total weight of your batch. It is designed to work in products with a pH of 3.0–8.0, so pH testing can help you keep a recipe within its stated working range.

Usage tips

Prepare the formulation with a water phase, then allow it to cool below 122°F (50°C) before adding Germall Plus Liquid. Weigh the preservative at 0.1–0.5% of the total product weight, for a 100 g batch, the stated amount is 0.1–0.5 g. Stir thoroughly so it is distributed throughout the mixture, and check that the finished product’s pH falls between 3.0 and 8.0.

For storage, transfer the finished product into sterilized, airtight containers and label each one with its date and ingredients. A measuring scale, stirring tool and pH strips or meter are listed as useful equipment for the process. These steps help make the preservative part of a consistent, clearly tracked formulation routine.

Should you buy it?

It suits you if you make water-based skincare or beauty products and want a liquid preservative with a stated use rate and working pH range. Choose it for recipes such as lotions, creams and serums where measured addition, thorough mixing and pH checking are part of your process. The 30 mL format is a practical fit for DIY formulation projects that call for broad-spectrum protection in a water-based product.