Cosmelan Peel
Some dark spots fade. Others are woven into the skin's biology — driven by enzyme overactivity, hormonal shifts, and years of sun damage. Cosmelan is the clinical answer. Ranked the #1 professional depigmentation treatment worldwide by Institute BCN, this two-phase system dismantles hyperpigmentation at its source and keeps it from returning — delivering visibly even, luminous skin that holds.
Educational content only and not a substitute for medical advice. Final treatment eligibility, risks, and protocol details are confirmed during an in-person clinician consultation.
What Is Cosmelan Peel?
How It Works
In-Depth Consultation & Skin Assessment
Before your Cosmelan treatment, your clinician performs a thorough skin assessment to confirm your Fitzpatrick type, evaluate the distribution and depth of your hyperpigmentation, and review your full history including medications, recent sun exposure, and any contraindications. This consultation shapes your mask wear time (8 to 12 hours) and your customized Cosmelan 2 maintenance schedule. Your clinician will also take clinical photographs to track your progress over the 12-week protocol.
Cosmelan 1 Mask Application
In the treatment room, your skin is thoroughly cleansed and degreased to ensure even absorption. The Cosmelan 1 mask — a caramel-colored paste containing azelaic acid, kojic acid, phytic acid, TCA, and ascorbic acid — is applied in an even layer across the treatment area. You leave our clinic with the mask on your skin. Your clinician will confirm your personal wear time (typically 8 to 12 hours) based on your skin type and sensitivity profile. You remove the mask at home as instructed, then apply the soothing aftercare cream provided in your kit.
Controlled Exfoliation Phase (Days 3–7)
Over the days following the in-clinic application, you will experience controlled peeling and flaking — this is an expected and necessary part of the process. The TCA and exfoliating acids are shedding the melanin-loaded epidermal cells, making way for fresher, less pigmented skin beneath. During this phase, your skin may appear red or feel tight. You will use only the Rani-approved gentle cleanser, healing moisturizer, and SPF 50+ provided in your post-treatment protocol. This phase is temporary; most peeling resolves within 7 to 10 days.
Cosmelan 2 At-Home Maintenance Protocol
Once peeling subsides, you begin applying the Cosmelan 2 maintenance cream daily. This phase — which runs for several months — is where the long-term results are built. The Cosmelan 2 cream continues to inhibit tyrosinase activity, prevent melanin rebound, and refine skin tone as cell turnover completes. Your clinician schedules a check-in appointment at 4 to 6 weeks to assess your progress, adjust application frequency if needed, and confirm you are on track. Strict daily SPF 50+ use is non-negotiable throughout this phase and beyond.
Who Is It For?
- Clients with melasma — especially hormonal melasma resistant to other treatments
- Anyone with post-inflammatory hyperpigmentation (PIH) from acne, injury, or previous procedures
- Those with sun spots, age spots, or solar lentigines that have not responded to topical brighteners
- Clients with chloasma or pregnancy-related skin discoloration
- Anyone with generalized uneven skin tone and persistent dullness
- Fitzpatrick types I–IV seeking a clinically proven, high-efficacy depigmentation protocol
- Clients who have tried multiple brightening products without achieving lasting, even results
- Anyone ready to commit to a full at-home maintenance protocol for durable, long-term skin evenness
What to Expect
Before
Discontinue retinoids, tretinoin, and all exfoliating acids for 7 days before your appointment. Avoid sun exposure and tanning for 2 weeks prior — even a mild tan will affect the treatment outcome. Arrive with clean, makeup-free skin. Notify your clinician if you are pregnant, breastfeeding, or have recently used isotretinoin (Accutane) within the past 6 months, as Cosmelan is contraindicated in these cases. Do not use blood-thinning supplements (vitamin E, fish oil) for 5 days before your appointment. Plan to be at the clinic for approximately 90 minutes for the full consultation and mask application, and arrange to have your schedule clear for the 8 to 12 hours the mask is worn at home.
During
The in-clinic portion of your Cosmelan appointment takes approximately 90 minutes. After your consultation and skin prep, the mask application itself takes 15 to 20 minutes. Once applied, you will leave the clinic with the mask on and instructions for removal at home at your prescribed wear time. During the wearing period, you may experience mild warmth, tingling, or tightness beneath the mask — this is normal. Avoid sweating, exercising, or exposing the mask to water until the prescribed removal time.
After
Expect visible peeling and flaking between days 3 and 7 — this is not a side effect, it is the treatment working. Your skin will shed the melanin-loaded surface cells to reveal the cleaner, more even skin beneath. During this phase, use only the gentle products provided in your kit: a mild cleanser, a barrier-repair moisturizer, and SPF 50+. Do not pick or forcibly remove peeling skin. After peeling resolves, begin the Cosmelan 2 maintenance cream as directed. Avoid sun exposure diligently for a minimum of 4 weeks post-treatment and continue SPF 50+ daily throughout the protocol — UV exposure is the primary trigger for melanin rebound. A follow-up appointment is scheduled at 4 to 6 weeks to assess your progress and adjust your protocol as needed.
Results & Recovery
Clinical data from Institute BCN demonstrates a 90% reduction in hyperpigmentation after 12 weeks of the complete Cosmelan two-phase protocol. Most clients begin to see visible brightening and tone evenness within 2 to 4 weeks as the surface exfoliation clears and the new skin emerges. The full depth of results — particularly for deep melasma and hormonal pigmentation — continues to develop over the 3-month maintenance phase as tyrosinase suppression takes effect and sustained cell turnover completes. A second in-clinic session may be recommended for clients with deep or recalcitrant melasma. The recovery period centers around the peeling phase (days 3 to 7), during which most clients prefer to work from home or plan social commitments around this window. Beyond the peel phase, daily life can resume normally with diligent SPF use. Cosmelan results are durable — particularly with ongoing SPF discipline and annual maintenance — because the treatment addresses the enzymatic mechanism, not just the surface pigment.
“I was so nervous about laser hair removal, but the Candela GentleMax Pro Plus made it completely pain-free. I actually fell asleep during my session! After just three treatments, I already see a dramatic reduction and my skin feels so smooth.”
Sarah M.
Renton, WA
“Having a board-certified neurologist administer my Botox makes all the difference. Dr. Landfield's understanding of facial anatomy is unmatched - my results look completely natural. Friends keep telling me I look refreshed, but nobody can pinpoint why.”
Jennifer L.
Bellevue, WA
Why Rani for Cosmelan Peel
Rani Beauty Clinic offers the authentic Cosmelan protocol, sourced directly from Institute BCN. Every treatment is performed and supervised by our clinical team under the medical oversight of Dr. Alexander Landfield, our board-certified Medical Director, who reviews every client's contraindication profile before treatment proceeds. We do not shortcut the protocol: your Cosmelan 1 wear time, your Cosmelan 2 maintenance schedule, and your follow-up appointments are all individualized to your skin type, pigmentation depth, and lifestyle. We pair the clinical treatment with a rigorous aftercare kit and scheduled check-ins so that your results are earned and held. For clients who have spent years cycling through brightening serums and superficial peels without resolution, Cosmelan at Rani represents a definitive, clinically grounded answer.
Pricing
Contact us for personalized pricing. We offer competitive rates and flexible payment options for qualified applicants.
Frequently Asked Questions
What exactly is the Cosmelan Peel?+
Cosmelan is a two-phase professional depigmentation system — not a traditional peel. Phase one is an in-clinic application of the Cosmelan 1 mask, which you wear for 8 to 12 hours and remove at home. Phase two is a months-long at-home protocol using Cosmelan 2 maintenance cream. Together, they inhibit the tyrosinase enzyme responsible for melanin overproduction, exfoliate pigmented surface cells, and prevent hyperpigmentation from returning. It is ranked the #1 professional depigmentation treatment globally by Institute BCN and used in over 80 countries.
Who is the ideal candidate for Cosmelan?+
Cosmelan is ideal for clients with melasma, post-inflammatory hyperpigmentation (PIH from acne or injury), sun spots, chloasma, or persistent uneven skin tone. It is clinically validated for Fitzpatrick skin types I through IV, with a modified protocol available for types V and VI. Cosmelan is not suitable for clients who are pregnant, breastfeeding, have active skin infections, or have used isotretinoin (Accutane) in the past 6 months. A thorough consultation with your clinician will confirm your candidacy before any treatment is planned.
Is the peeling normal? How bad does it get?+
Yes — the peeling between days 3 and 7 is an expected and necessary part of the Cosmelan protocol. The TCA and exfoliating acids in the Cosmelan 1 mask shed the melanin-loaded surface cells, creating space for fresher, less pigmented skin beneath. The intensity of peeling varies by skin type and mask wear time but is typically described as moderate: visible flaking and tightness, not raw or weeping skin. Most clients plan their social commitments around this window and work from home during peak peeling days. Using only the approved gentle kit products during this phase protects the barrier and supports a smooth recovery.
How many Cosmelan sessions are needed?+
The standard protocol includes one in-clinic Cosmelan 1 mask application followed by 3 to 4 months of at-home Cosmelan 2 maintenance cream. Clinical data shows 90% reduction in hyperpigmentation at 12 weeks. For clients with deep or recalcitrant melasma, a second in-clinic session may be recommended at 3 to 6 months. Annual maintenance sessions or ongoing at-home Cosmelan 2 use are commonly recommended to maintain results long-term, particularly for hormonal melasma where the trigger (sun, hormones) is ongoing.
Is Cosmelan safe for darker skin tones?+
Cosmelan is clinically validated for Fitzpatrick types I through IV. For types V and VI, a modified protocol is available and must be discussed thoroughly during your consultation. The risk with darker skin types is post-inflammatory hyperpigmentation from the treatment itself if the protocol is too aggressive — which is why wear time customization and a conservative introduction to Cosmelan 2 are essential. At Rani, we take Fitzpatrick typing seriously and will not proceed with treatment on any skin tone without a full consultation and an individualized plan that prioritizes your safety and your outcome.
How much does the Cosmelan Peel cost?+
The Cosmelan Peel is $1,399 per session (90 min in-clinic application), which includes the Cosmelan 1 mask treatment, your aftercare kit, and your follow-up progress appointment. The at-home Cosmelan 2 maintenance cream is included in your protocol plan. Financing is available through Cherry and PatientFi with no credit impact pre-qualification. Call us at (425) 539-4440 to schedule your consultation and confirm your candidacy.
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