Colostrum

What is Colostrum?

Colostrum refers to the thick, yellowish fluid secreted by mammary glands of mammals right after birth, prior to regular milk production. In cosmetics, it is sourced mainly from bovine origins and prized for its rich composition of proteins like immunoglobulins and lactoferrin, along with lipids, vitamins, minerals, and bioactive peptides. This ingredient belongs to the emollient and protective category in skincare formulations such as moisturizers, serums, and masks. It works by delivering humectant and occlusive effects that lock in moisture, promote suppleness, and create a breathable film on the skin's surface to guard against dehydration and daily aggressors like pollutants, without clogging pores.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.
Skin protecting
Forms a barrier to protect skin from external irritants.

Benefits

Supports skin softness and smoothness through conditioning properties.

Helps form a protective layer against external irritants.

Maintains skin flexibility and hydration balance.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Individuals with dry or rough skin seeking emollient effects.
People with dairy or milk protein allergies.
Those desiring a natural barrier to environmental stressors.
Vegans or those avoiding animal-derived ingredients.
People looking for conditioning in daily moisturizers.
Individuals preferring fully plant-based skincare routines.

Safety Notes

  • Rated low hazard by EWG with scores of 1.
  • Non-comedogenic, suitable for acne-prone skin.

Frequently Asked Questions about Colostrum

What is colostrum in cosmetics?

It's the nutrient-rich first milk from cows, used for skin conditioning and protection in creams and serums.

Is colostrum safe for sensitive skin?

It has a low hazard rating and non-comedogenic profile, but patch testing is advised for allergies.

Why might someone skip colostrum?

Due to potential dairy sensitivities or preference for non-animal ingredients.