How to Use efficacious in a Sentence

efficacious

adjective

• At the end of the day, to suggest that plant medicine is not efficacious feels pretty silly to me.
  — Rachel King, Fortune, 20 Sep. 2020
• But what's not simple about her range of efficacious products?
  — Harper's BAZAAR, 5 May 2023
• There is little to no research to support the efficacious use of yohimbe.
  — Jennifer Lefton, Ms, Rd/n, Cnsc, Fand, Verywell Health, 24 Apr. 2023
• Not all experts agree on whether eye creams are any more efficacious than, say, regular creams.
  — Jenny Berg, Vogue, 5 Jan. 2025
• That said, what the beauty consumer will always want is efficacious skin care.
  — Funmi Fetto, Vogue, 15 Nov. 2022
• Just know the higher price point doesn’t make the formula more efficacious.
  — Nerisha Penrose, ELLE, 31 Dec. 2022
• There weren't products that met halal standards, were efficacious, and were safe enough to use on her son, who has eczema.
  — Gabi Thorne, Allure, 26 Jan. 2023
• Truth be told, Hinds was skeptical that an efficacious facial could be done in a half-hour.
  — Jennifer Weil, WWD, 18 Oct. 2024
• Other efforts were less efficacious, but these books and broadcasts worked.
  — Andrei Soldatov, Foreign Affairs, 13 May 2022
• These algorithms are only as efficacious as the data they are trained on.
  — Igor Khalatian, Forbes, 17 Mar. 2023
• The nine-piece collection makes huge strides for the brand in the arenas of efficacious, clean skincare and makeup.
  — ELLE, 6 Jan. 2022
• Certainly the myth of the cowboy is an efficacious myth, one based first of all upon a deep response to nature.
  — Larry McMurtry, Harper's magazine, 28 Oct. 2019
• Lean into how your brain functions to make efficacious thought leadership.
  — Rolling Stone Culture Council, Rolling Stone, 4 Jan. 2023
• No one was predicting vaccines that were highly efficacious by the end of the calendar year.
  — USA Today, 11 Mar. 2021
• In the past 20 years, this technology has proved efficacious.
  — Costas Synolakis, WSJ, 3 Oct. 2018
• These excess profit taxes are not always as efficacious as proponents hope for.
  — Sasha Rogelberg, Fortune, 2 May 2026
• The muses may hold a pen in one hand and a smoke, or steaming mug, in the other—herbal remedies continue to be efficacious for writer’s block.
  — Alison Habens, JSTOR Daily, 31 Oct. 2024
• It's packed with efficacious skin care ingredients to smooth and firm mature complexions.
  — Tamim Alnuweiri, InStyle, 6 July 2026
• Designing a safe, efficacious drug that reaches the right target at the right time is extremely difficult.
  — John Cumbers, Forbes, 27 May 2021
• Paxlovid, the only other oral antiviral on the market, continues to be the most efficacious drug option.
  — Claire Bugos, Verywell Health, 13 Feb. 2023
• The new preclinical drug candidate was found efficacious and safe in mice studies, the company said in a press release.
  — Aayushi Pratap, Forbes, 22 June 2021
• This means efficacious skincare and sleek, luminous beauty.
  — Essence, 18 Sep. 2025
• The buzzy brand quickly became a shopper favorite thanks to its efficacious and affordable formulas.
  — Kyra Surgent, InStyle, 16 Feb. 2026
• The buzzy brand quickly became a shopper favorite thanks to its efficacious and affordable formulas.
  — Kyra Surgent, InStyle, 10 Jan. 2026
• From its best-selling cleansing balm to its nourishing lip mask, the brand seeks to deepen people's skincare routines with the most efficacious products.
  — Dale Arden Chong, Glamour, 16 Apr. 2021
• Although academics give biotech and pharma a bad rap, biotech is much more team-oriented than academia and the end goal of the team is to develop drugs that are safe and efficacious and help people.
  — Alex Zhavoronkov, Forbes, 14 June 2021
• Oh, that’s right, there’s a measles vaccines that is over 97% efficacious against the measles after two doses are administered, which people have been getting for years.
  — Bruce Y. Lee, Forbes, 15 Mar. 2025
• The higher dose antibody was 77% efficacious and the lower dose 54%, compared with the placebo.
  — Bymeredith Wadman, science.org, 31 Oct. 2022
• Herbal remedies are the basis for many medications, and in certain situations may be efficacious (though dosing is much harder).
  — Hannah Kerman, STAT, 29 Apr. 2026
• The cutting-edge Swiss skincare brand is famous for their impressively efficacious formulas and this assortment turns back the clock in style.
  — Celia Shatzman, Forbes, 5 Nov. 2021