·Research notes

Ecrina research, explained.

Evidence-backed articles about excessive sweating. Clinical claims link to their underlying sources, with limitations and treatment boundaries kept alongside the findings.

01 / RESEARCH
Aluminum Chloride for Sweating: Evidence and Risks
Aluminum chloride hexahydrate can reduce focal sweating during treatment. Compare palm, foot, and underarm evidence with irritation and formulation limits.
Jul 11, 2026 · Ecrina Editorial
02 / RESEARCH
Antiperspirant for Feet: Evidence and Safe Use
Aluminum chloride can reduce plantar sweating. Learn what the small foot trial found, how to check product labels, and when skin symptoms need care.
Jul 11, 2026 · Ecrina Editorial
03 / RESEARCH
Antiperspirant for Hands: Evidence and Safe Use
Small studies support temporary palmar sweat reduction with aluminum chloride. Check palm-use directions, irritation, and when to consider iontophoresis.
Jul 11, 2026 · Ecrina Editorial
04 / RESEARCH
Best Antiperspirant for Excessive Sweating?
Evidence does not identify one best brand for every body site. Compare active ingredients, label directions, strength, and irritation before choosing.
Jul 11, 2026 · Ecrina Editorial
05 / RESEARCH
Botox for Sweaty Armpits: Evidence and Risks
A 320-person trial favored Botox over placebo for underarm sweating. Review the severe-axillary indication, response duration, adverse events, and limits.
Jul 11, 2026 · Ecrina Editorial
06 / RESEARCH
Does Insurance Cover Botox for Hyperhidrosis?
Coverage varies by plan. Learn which diagnosis, severity, prior-treatment, coding, authorization, network, and body-site details insurers may check.
Jul 11, 2026 · Ecrina Editorial
07 / RESEARCH
Does Caffeine Make You Sweat? What Studies Show
Caffeine can change sweating in some exercise and heat studies, but results are context-dependent and do not show that caffeine causes hyperhidrosis.
Jul 11, 2026 · Ecrina Editorial
08 / RESEARCH
Certain Dri: Ingredients, Directions, and Safety
Certain Dri formulas differ. This review checks one current Extra Strength Clinical Solid label, its underarm directions, warnings, and evidence limits.
Jul 11, 2026 · Ecrina Editorial
09 / RESEARCH
Clinical Strength Antiperspirant: Label Guide
Clinical strength is not one formula or ingredient percentage. Learn how to read Drug Facts, separate OTC from prescription products, and weigh irritation.
Jul 11, 2026 · Ecrina Editorial
10 / RESEARCH
Finding a Dermatologist for Hyperhidrosis
Learn when dermatology fits, how to verify training and body-site experience, what to bring, and which diagnosis and follow-up questions to ask.
Jul 11, 2026 · Ecrina Editorial
11 / RESEARCH
Drysol: Uses, Evidence, and Safety
A 2008 FDA name review identifies Drysol as 20% aluminum chloride. Review body-site evidence, irritation, and why current labeling should guide use.
Jul 11, 2026 · Ecrina Editorial
12 / RESEARCH
How to Stop Sweaty Feet: A Treatment Ladder
A practical plantar-hyperhidrosis ladder covering moisture management, aluminum chloride, iontophoresis, and when atypical sweating needs evaluation.
Jul 11, 2026 · Ecrina Editorial
13 / RESEARCH
How to Stop Sweaty Hands: A Treatment Ladder
Palmar treatment often moves from aluminum chloride to iontophoresis, with specialist options when hand sweating remains disabling.
Jul 11, 2026 · Ecrina Editorial
14 / RESEARCH
What Is Hyperhidrosis? Types and Diagnosis
Hyperhidrosis is sweating beyond thermal needs. Learn how primary focal and secondary patterns differ, how severity is measured, and when to seek care.
Jul 11, 2026 · Ecrina Editorial
15 / RESEARCH
Hyperhidrosis Treatment by Body Site
Compare aluminum chloride, Qbrexza, iontophoresis, Botox, oral oxybutynin, and procedures by body site, evidence, safety, and treatment burden.
Jul 11, 2026 · Ecrina Editorial
16 / RESEARCH
Iontophoresis Machine: Evidence and Buying Checks
Tap-water iontophoresis has controlled evidence for sweaty palms. Review trial limits and the safety, body-site, control, and support details to verify.
Jul 11, 2026 · Ecrina Editorial
17 / RESEARCH
Is Hyperhidrosis Genetic? What Family Studies Show
Primary focal hyperhidrosis can run in families, but evidence does not establish certain inheritance, one causal gene, or a diagnostic consumer DNA test.
Jul 11, 2026 · Ecrina Editorial
18 / RESEARCH
miraDry: Underarm Evidence, Risks, and Recovery
See who miraDry was studied for, short- and 12-month results, common recovery effects, rare reported harm, repeat sessions, and underarm-only clearance.
Jul 11, 2026 · Ecrina Editorial
19 / RESEARCH
miraDry Cost: What to Ask Before You Pay
There is no reliable national miraDry price. Use this checklist to compare sessions, included fees, follow-up, financing, recovery, and coverage.
Jul 11, 2026 · Ecrina Editorial
20 / RESEARCH
Qbrexza for Underarm Sweating: Benefits and Risks
Two 4-week trials found greater improvement with glycopyrronium cloth than vehicle. Review underarm-only use, anticholinergic risks, and evidence limits.
Jul 11, 2026 · Ecrina Editorial
21 / RESEARCH
Socks for Sweaty Feet: Fit and Drying Guide
Use fit, seams, thickness, moisture movement, drying time, and shoe space to compare socks. They manage moisture but do not treat sweating.
Jul 11, 2026 · Ecrina Editorial
22 / RESEARCH
Sweat-Proof Clothing: Fabrics, Layers, and Fit
Sweat-proof clothing may absorb, move, block, or hide moisture. Compare coverage, saturation, heat, seams, visibility, and wash durability.
Jul 11, 2026 · Ecrina Editorial
23 / RESEARCH
Underarm Botox Cost: Units, Fees, and Coverage
A complete underarm Botox quote may include 100 Units, injection fees, follow-up, insurance terms, and repeat care. Compare itemized estimates.
Jul 11, 2026 · Ecrina Editorial
24 / RESEARCH
Underarm Sweat Pads: Types, Fit, and Limits
Compare garment, skin-adhered, and reusable sweat pads by coverage, attachment, visibility, skin contact, and change burden. Pads do not reduce sweat.
Jul 11, 2026 · Ecrina Editorial
25 / RESEARCH
Why Do My Feet Sweat So Much? Patterns That Matter
Sweaty feet may reflect heat, footwear, primary plantar hyperhidrosis, skin disease, or a secondary trigger. Learn which patterns need evaluation.
Jul 11, 2026 · Ecrina Editorial

Ecrina research, explained.

Aluminum Chloride for Sweating: Evidence and Risks

Antiperspirant for Feet: Evidence and Safe Use

Antiperspirant for Hands: Evidence and Safe Use

Best Antiperspirant for Excessive Sweating?

Botox for Sweaty Armpits: Evidence and Risks

Does Insurance Cover Botox for Hyperhidrosis?

Does Caffeine Make You Sweat? What Studies Show

Certain Dri: Ingredients, Directions, and Safety

Clinical Strength Antiperspirant: Label Guide

Finding a Dermatologist for Hyperhidrosis

Drysol: Uses, Evidence, and Safety

How to Stop Sweaty Feet: A Treatment Ladder

How to Stop Sweaty Hands: A Treatment Ladder

What Is Hyperhidrosis? Types and Diagnosis

Hyperhidrosis Treatment by Body Site

Iontophoresis Machine: Evidence and Buying Checks

Is Hyperhidrosis Genetic? What Family Studies Show

miraDry: Underarm Evidence, Risks, and Recovery

miraDry Cost: What to Ask Before You Pay

Qbrexza for Underarm Sweating: Benefits and Risks

Socks for Sweaty Feet: Fit and Drying Guide

Sweat-Proof Clothing: Fabrics, Layers, and Fit

Underarm Botox Cost: Units, Fees, and Coverage

Underarm Sweat Pads: Types, Fit, and Limits

Why Do My Feet Sweat So Much? Patterns That Matter