⚡ Medical evaluation in 24h · From R$ 149/month · Cancel anytime
Weight Loss
Semaglutide / GLP-1
Men's Health
TRT & Testosterone Erectile Dysfunction Hair Loss
Women's Health
HT & Hormones Prescription Skincare Women's Hair Loss
Longevity
Peptides Injectable NAD+ Sleep
Our Doctors About ZENKAI Founders Contact Patient Portal Start Medical Evaluation
Online Dermatologist ANVISA-Compounded Formulas No Waitlist From R$ 149/month

Dermatologist-grade skincare.
Prescribed from your phone.

Tretinoin, azelaic acid, hydroquinone and retinoids at prescription strengths. Compounded formulas individualized for your skin type. Delivered to your door. No waitlist for a dermatologist.

Start Medical Evaluation
ZENKAI Pele patient
Clinical skincare

Tretinoin at the right concentration for your skin.

A CFM dermatologist reviews your case and prescribes an individualized formula, compounded at an ANVISA-authorized pharmacy.

Start Medical Evaluation →

The actives that actually work.

Dermatology-grade actives that can only be compounded at high concentrations with a medical prescription.

Tretinoin
Anti-aging + Acne
The gold standard of dermatology. Accelerates cell turnover, reduces fine lines, hyperpigmentation and acne. Prescription-only — and for good reason.
🔆
Azelaic Acid
Spots + Acne + Melasma
Ideal for sensitive skin and darker skin tones. Fades post-inflammatory hyperpigmentation, fights acne and reduces redness. Safe to use during pregnancy.
Hydroquinone
Spots + Melasma
The most effective brightening agent available. Requires a prescription and medical supervision. Visible results in 4 to 8 weeks.
🧪
Niacinamide + Retinol
Pores + Firmness + Glow
High-concentration formulas combining niacinamide and retinol to refine pores, improve texture and restore skin vitality — compounded to each patient's needs.

The first ZENKAI Skin patients.

Before public launch, we ran a closed beta. Below: feedback from the first patients and the clinical evidence backing the dermatology protocol.

★★★★★
Beta Program

"Compounded formula with tretinoin and azelaic acid, tuned to my skin by the dermatologist. I used to spend R$ 400 per in-person visit. Here I paid R$ 149/month with automatic prescription renewal."

Gabriela K.
São Paulo, SP · beta patient
★★★★★
Beta Program

"Booked on my phone, doctor reviewed my case in 24h. She adjusted the formula twice in the first few weeks, no extra charge. Direct messaging through the portal, no re-booking required."

Larissa P.
Rio de Janeiro, RJ · beta patient
📊
Clinical Evidence

"Topical tretinoin at 0.025% to 0.1% significantly reduces fine lines, hyperpigmentation and acne, with visible clinical results from 12 weeks of continuous use."

Cochrane Review · Topical Retinoids
Mukherjee et al. · Clin Interv Aging · 2006

Beta program testimonials from the pre-launch phase. Individual results may vary based on skin type, adherence and clinical factors. Tretinoin and hydroquinone must be used under medical supervision.

Simple and transparent.

ZENKAI Pele

Dermatology consult + compounded formula + delivery

R$ 149
per month · all-inclusive · no separate consult fee
Start Medical Evaluation

Skincare questions.

Can I use tretinoin during the day?
No. Tretinoin is unstable in sunlight and should only be used at night. During the day, a high-SPF sunscreen is essential. Your dermatologist will walk you through the full usage protocol in detail.
How long until I see results?
Tretinoin and azelaic acid typically show first results between 8 and 12 weeks of consistent use. More significant improvements appear between 3 and 6 months. The so-called "skin purge" (a mild initial worsening) is normal in the first 2 to 4 weeks — and a sign that the product is working.
Is the compounded formula safe?
Yes, when produced in an ANVISA-licensed pharmacy with quality-grade inputs. Our partner pharmacies are audited and issue a quality report for every batch.

Skincare with clinical rigor. No waitlist.

A dermatologist reviews your case within 24 hours. Cancel anytime. No commitment.

Start Medical Evaluation
Start Medical Evaluation — From R$ 149/month

ZENKAI Health Coach

AI · Available 24/7

LGPD-compliant · Does not replace a medical consultation