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Other factors also matter, including density (how many strands grow per square inch) and porosity (how easily hair absorbs moisture).—Allison Palmer, Kansas City Star, 12 Mar. 2026 What sets this mask apart is the brand’s capsule technology, which delivers argan oil, amino acids, and keratin-like proteins to improve porosity from within, smooth split ends, and reinforce the cuticle.—Christa Joanna Lee, Allure, 26 Feb. 2026 Colorist Lindsay Wolf notes that results can vary depending on porosity, previous color, moisture levels, and frequency of use.—Iman Balagam, Vogue, 20 Feb. 2026 In six‑figure jewelry and hardware, porosity is fatal.—Lilian Raji, Forbes.com, 30 Jan. 2026 See All Example Sentences for porosity