The Skin Science Company

Formulators, where would guava oil earn a place in your next cosmetic concept: face oil, radiance-style serum, body oil or hair treatment? Tell us your first pick.
Whatever the format, assess compatibility, stability and suitability in the finished formula.

What comes first in your formulation notebook: the hero ingredient or the product format? Aloe Vera Gel, Oat Oil and Rosemary Essential Oil are a useful reminder that a shortlist is the beginning of the brief, not the finished answer.

A good DIY formulation habit is to write the purpose and handling plan before reaching for the ingredients. For a lip scrub concept, that means thinking about texture, hygienic application and whether the formula suits the way it will be used. What do you record first when testing a new personal-care idea?

A good first question for any DIY batch: what job does each ingredient need to do? When you begin with the final texture and intended use, it is easier to make purposeful formulation decisions rather than adding ingredients at random. Keep tools and packaging clean, and consider preservation and suitability in the finished formula. What is the first thing you decide before starting a new batch?

One review can start a useful conversation, but it should never be treated as the whole story. The displayed eBay reviewer shares their personal perspective on reordering HA + B5 Serum for a beauty business; this is customer feedback, not independently verified evidence.
Beauty founders, when a customer leaves feedback, which detail helps you improve most?

Rich butters can bring a beautiful character to a formula, but the product format should lead the ingredient choices. When you plan a new concept, do you begin with the texture you want or the ingredients you want to include?

A simple product line can be harder to define than a long one. The real starting point is deciding what each format contributes to the customer experience. If you were refining a three-piece range, would you begin with a serum, gel or oil?

Ready-made products and DIY projects can sit happily on the same shelf. For many makers, the value of formulation is learning the thinking behind a product, then turning an idea into a considered project. What is the first skincare product you wanted to understand or create?

The enjoyable part of formulation is often the question at the beginning: what do I want to make, and how do I want it to feel? Starting with that intention can make every ingredient choice more purposeful. What is the first detail you plan when developing a new skincare idea?

A three-ingredient lip scrub can be a great prompt for refining formulation habits. Beyond choosing ingredients, what do you note first: texture, intended use, hygiene or storage? Keep clean handling and responsible storage in the plan for any DIY batch.