Solubilizers have HLB value of what?

Solubilizers have HLB value of what?

• A. 7-9
• B. 15-20
• C. 1-3
• D. 3-6

Answer: (B)

Solubilizers are typically highly hydrophilic surfactants used to keep poorly soluble drugs in aqueous solution by forming micelles. The HLB (hydrophilic-lipophilic balance) value indicates how hydrophilic a surfactant is: higher HLB means more water-loving character, which favors solubilization in water. Therefore solubilizers usually have high HLB values, around 15–20, enabling them to solubilize lipophilic drugs in aqueous media. Examples of such solubilizing surfactants include polysorbates (Tween) and other nonionic surfactants with high HLB. Lower HLB values (1–3 or 3–6) indicate lipophilic surfactants suited to oil-rich systems, not effective for solubilization in water.

Solubilizers are typically highly hydrophilic surfactants used to keep poorly soluble drugs in aqueous solution by forming micelles. The HLB (hydrophilic-lipophilic balance) value indicates how hydrophilic a surfactant is: higher HLB means more water-loving character, which favors solubilization in water. Therefore solubilizers usually have high HLB values, around 15–20, enabling them to solubilize lipophilic drugs in aqueous media. Examples of such solubilizing surfactants include polysorbates (Tween) and other nonionic surfactants with high HLB. Lower HLB values (1–3 or 3–6) indicate lipophilic surfactants suited to oil-rich systems, not effective for solubilization in water.