Sources starting with M

• Malassezia folliculitis

  DermNet Malassezia folliculitis guidance supports distinguishing so-called fungal acne from ordinary acne and routing persistent follicular bumps to clinicians.

• Mandelic acid in acne and chemical peeling

  PubMed mandelic acid literature supports cautious discussion of mandelic acid as a larger-molecule AHA option.

• Matta 2019 — Sunscreen Active Ingredients Absorption Study

  Matta 2019 measured plasma concentrations of sunscreen active ingredients under maximal-use conditions.

• Matta 2020 — Sunscreen Active Ingredients Absorption Study

  Matta 2020 measured plasma concentrations of additional sunscreen active ingredients after sunscreen application.

• Mayo Clinic — Age spots

  Medical reference used for age-spot overview and clinician-boundary context.

• Mayo Clinic — Bags under eyes

  AAD patient guide used for under-eye bags/puffiness self-care, including cold compresses, sleep elevation, salt, allergies, smoking, and professional-care boundaries.

• Mayo Clinic. "Bags under eyes."

  Mayo Clinic.

• Mayo Clinic — Menopause

  Medical reference used for menopause and perimenopause framing and clinician-boundary context.

• MedlinePlus — Acne

  Public-health reference identifying blackheads as part of the acne/comedone family and summarizing basic care.

• MedlinePlus — Benzoyl Peroxide Topical

  MedlinePlus benzoyl peroxide drug information supports practical precautions for dryness, irritation, hair bleaching, and colored-fabric bleaching risks.

• MedlinePlus Medical Encyclopedia. "Aging changes in skin."

  MedlinePlus explains age-related skin changes including thinner skin, reduced elasticity, visible folds, and fragility that frame neck-aging concerns.

• MedlinePlus — Skin Pigmentation Disorders

  Public-health reference for pigmentation disorders and clinician-punt context.

• Meixiong 2022 — Diet and acne

  Systematic review used for broader diet-acne context and dairy-evidence caveats.

• Methylisothiazolinone allergy

  DermNet methylisothiazolinone allergy guidance supports preservative allergy and patch-test referral language.