Which Type of Hyaluronic Acid Should Be Chosen for Different Skin Types?

Hyaluronic acid is a moisturizing component naturally found in the human body. Based on molecular weight, it can be divided into three categories: high molecular weight, medium molecular weight, and low molecular weight. Different skin types have different sebum secretion and barrier function, requiring the selection of a suitable type to achieve the ideal moisturizing effect.

Oily/combination skin has excessive sebum secretion, is prone to oiliness, and has large pores. The core needs are refreshing hydration without clogging pores. It is recommended to choose low molecular weight hyaluronic acid. Its small molecular weight allows for strong penetration, deeply hydrating the skin, while its lightweight, non-sticky texture won't burden the skin. Pairing it with a product base containing oil-controlling ingredients can also help regulate sebum secretion and prevent clogged pores.

Dry skin has a weak barrier function, loses moisture quickly, and is prone to dryness, peeling, and tightness. It requires strong moisture retention and barrier repair. High molecular weight hyaluronic acid is the best choice. Its larger molecular weight makes it difficult to penetrate the epidermis, forming a breathable moisturizing film on the skin surface to lock in moisture and reduce loss. When used in conjunction with medium-molecular-weight hyaluronic acid, it can both lock in moisture on the surface and replenish hydration in the middle layer, enhancing the lasting moisturizing effect.

Sensitive skin has a fragile barrier, prone to redness and stinging, and has low tolerance to ingredients. Its core needs are gentle moisturizing and soothing repair. It is recommended to choose medium-molecular-weight hyaluronic acid, which has low irritation, can penetrate to the stratum corneum to replenish moisture, and can form a thin protective film on the surface to reduce external irritation. It is important to choose products with high purity, free of fragrance and preservatives, to avoid aggravating skin sensitivity.

Normal skin has balanced sebum secretion and a healthy barrier, and its need is to maintain water-oil balance. The choice can be adjusted according to the season: in summer, choose small-molecular-weight hyaluronic acid for a refreshing feel, and in winter, combine it with medium-molecular-weight hyaluronic acid for enhanced moisturizing. There is no need to deliberately pursue a single type; a balance of hydration and moisture retention is sufficient.