The Importance of a Shampoo's Cosmetic Base: Beyond Active Ingredients

When we think about a shampoo, we usually focus on its star ingredients: niacinamide, ceramides, postbiotics, aloe vera, argan oil... All of them have recognized benefits for scalp health and hair beauty, but there is an essential part of the formula that often goes unnoticed: the shampoo base.

This "base," which in some cases accounts for up to 95% of the product, not only determines its texture or cleansing ability but also its tolerability, efficacy, and user experience.

At Modesta Cassinello, we formulate from the base, with the same rigor with which we select an active ingredient. Because we believe that a truly effective shampoo is built from the base, not just from the ingredients highlighted on the label.

This technical and honest vision sets us apart and responds to the growing demand of conscious consumers: effective, sensory products that are respectful of the scalp and hair.

What is the shampoo base and why should we pay more attention to it?

A shampoo base is composed of ingredients that determine its cleansing efficacy, sensory behavior, and dermatological tolerance.

• Surfactants, responsible for cleansing.
• Thickeners and stabilizers, which provide texture and stability to the formula.
• Humectants, which retain moisture.
• Water, the main vehicle that allows the action of the other ingredients.

A poorly designed base can cause dryness, irritation, or frizz. In contrast, a well-formulated base protects, balances, and improves the health of the scalp and hair fiber.

3 key ingredients we use in our cosmetic bases

1. Natural betaine

Derived from plant sources, such as beets, betaine acts as an osmolyte: it helps cells retain water and remain stable against external stress.

Proven benefits:

• Strengthens the resistance of the hair fiber.
• Reduces breakage and improves shine.
• Hydrates the scalp and strengthens its skin barrier.
• Reduces irritation caused by surfactants.

2. Natural vegetable gums

Acacia gum and Xanthan gum, used as thickeners and stabilizers, improve both the texture and tolerability of the shampoo.

Cosmetic and functional benefits:

• Stabilize the formula against pH or temperature changes.
• Create a non-occlusive protective film on the skin.
• Provide a soft feel, without a soapy effect.
• Protect against pollution and dehydration.
• COSMOS, NATRUE, Halal, Kosher and vegan certified.

3. Vegetable glycerin

Although often overlooked, glycerin is one of the most effective and safest humectants in hair cosmetics.

Reasons to highlight it:

• It has a strong hygroscopic capacity: it attracts and retains water in the skin and hair.
• Helps maintain hydration even after rinsing.
• Improves hair combability, shine, and elasticity.
• Strengthens the skin barrier and contributes to scalp comfort.
• Well tolerated even on sensitive skin, with an excellent safety profile.

In our formulas, glycerin is used in significant technical percentages, not as a mere additive, but as a fundamental part of the moisturizing base.

Caring for the scalp like caring for the skin: the skinification philosophy

The global trend in hair cosmetics is moving towards skinification: applying the same principles of facial care to hair care. This perspective focuses on scalp health as the foundation for strong, manageable hair.

Why do our shampoos follow the skinification philosophy?

• We carefully select each ingredient from the base, to achieve effective cleansing without compromising scalp balance or hair fiber integrity.
• We formulate not from what is forbidden, but from respect for skin and hair.
• What is important is not just what ingredients we use, but how and why we use them, paying attention to every detail of the formula.
• We formulate with pharmaceutical rigor and a scientific approach, not based on marketing.

When choosing a shampoo, remember this

It's easy to be swayed by a shampoo recommended by an influencer on Instagram or TikTok with a list of flashy active ingredients or "silicone-free" or "natural" claims. But if you really want a shampoo that takes care of your hair and scalp, pay close attention to the base of the formula.

A good shampoo is not defined solely by its claims, but by how it is formulated as a whole. And that is the difference you will notice in daily use.

Want to experience the difference?

Explore our shampoos and discover the real effect of a base formulated with sense, purpose, and evidence.

Discover the collection: https://modestacassinello.com/collections/champus

Every article is backed by the expertise of our founder and CEO Dr. Modesta Cassinello, Doctor in Pharmacy and Diploma in Nutrition, committed to excellence in skin and hair care.