PoreWise

One finding · Human trial · 2015

Study title

The effect of physically applied alpha hydroxyl acids on the skin pore and comedone

Kind of evidence
Human trial 2015 · 23 people · healthy women (mean age 30) · PMID 26032934
Measured outcome
Skin effect
Year
2015
Who was studied
23 healthy women (mean age 30)
Sample size
23
Measured outcome
In 23 women, a single application of a 4% alpha-hydroxy acid solution combined with negative-pressure physical action significantly reduced whitehead and blackhead counts at 1, 2 and 4 weeks, and reduced pore area and number at week 1, compared with AHA peeling alone.
Certainty
Low
Who was measured
Healthy women receiving a single in-clinic application in a randomised split-face design, assessed at 1, 2 and 4 weeks.
Study limits
The intervention was a single in-clinic chemical peeling plus negative-pressure physical action.

Where it comes from

PMID 26032934

Ingredients it was measured on

Skin concerns studied

Other findings on the same ingredient or concern

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    In 83 adults with comedones, a serum containing salicylic acid and lipohydroxy acid significantly improved open comedones on the nose, closed comedones on the face, skin pore density, sebum secretion and skin hydration from baseline after 8 weeks; adding a mask improved closed comedones more than the serum alone (-6.56 vs -5.19, p = 0.022).

    Human trial · 2023 · 83 people · adults with comedones (41 serum+mask, 42 serum alone) · Adults in Shanghai with comedones, PIE and PIH, using the serum for 8 weeks. · Both groups used active products; improvements were reported against baseline and between the two active groups. Industry-funded. This is the trial found that counted open and closed comedones separately.

    PMID 36999489

  2. Skin effect
    Comparative study of buffered 50% glycolic acid (pH 3.0) + 0.5% salicylic acid solution vs Jessner's solution in patients with acne vulgaris

    In a prospective, randomized, evaluator-blind, split-face trial of 20 patients with acne vulgaris, two 50% glycolic acid + 0.5% salicylic acid peels significantly reduced total lesion count (P<0.001) and produced fewer side effects than Jessner's solution.

    Human trial · 2018 · 20 people · patients with acne vulgaris · Patients with acne vulgaris receiving two 50% glycolic acid + 0.5% salicylic acid peels 2 weeks apart (one side vs Jessner's solution on the other). · Small sample (20) and a combination peel (glycolic + salicylic acid); this is a procedural peel.

    PMID 29164826

  3. Skin effect
    Shake-Induced Temporary Ion-Pairing Between Lecithin and Glycolic Acid for Enhanced Exfoliation in a Novel Biphasic Serum: Comparative Ex Vivo and in Vivo Randomised Studies

    In a 2-week double-blind split-face study of 37 participants, a biphasic serum with 10% glycolic acid delivered 45.52% greater exfoliation (p<0.001) and improved skin brightness, texture and hydration versus the comparison side.

    Human trial · 2026 · 37 people · participants in a split-face study · Healthy participants using a 10% glycolic acid biphasic serum on one side of the face for 2 weeks. · Short duration (2 weeks) and a single product formulation; the study measured exfoliation and cosmetic parameters.

    PMID 41987370

  4. Skin effect
    Assessing the Value of Botanical Anti-Inflammatory Agents in an OTC Acne Treatment Regimen

    In a 12-week randomized trial of 80 subjects aged 12 and over with mild-to-moderate acne, a botanical anti-inflammatory OTC skincare regimen produced significantly lower closed-comedone counts than a benzoyl peroxide comparator at week 4 (P<0.001) and week 12 (P=0.006), with fewer inflammatory lesions at week 4 (P=0.016).

    Human trial · 2015 · 80 people · subjects aged 12+ with mild-to-moderate acne · Closed-comedone and inflammatory lesion counts over 12 weeks. · The comparator is an active benzoyl peroxide regimen.

    PMID 26659934

  5. Skin effect
    A cleanser formulated with Tris (hydroxymethyl) aminomethane and l-arginine significantly improves facial acne in male Thai subjects

    In a 4-week randomized, double-blind controlled trial of 34 men with mild-to-moderate acne, a cleanser formulated with tris(hydroxymethyl)aminomethane and L-arginine significantly reduced the average pore size with keratotic plugs on the cheeks, along with non-inflammatory and inflammatory acne lesions.

    Human trial · 2020 · 34 people · Thai men with mild-to-moderate acne · Men with mild-to-moderate acne using a rinse-off cleanser twice daily for 4 weeks. · A rinse-off cleanser.

    PMID 31347768