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Overnight Repair Serum Usage Instructions

Patch Test

Before using the Overnight Repair Serum on your face, apply a small amount on a discreet area (e.g., behind your ear or jawline) for 24-48 hours to check for any irritation.

How Often to Apply

Use the Overnight Repair Serum every night.

How to Apply

Apply nightly:
1. Cleanse face with a gentle, non-active cleanser
2. Pat skin dry completely
3. Apply 2–3 drops directly to the face and tap in
4. Leave on for 10–20 minutes to fully absorb

Allowed vs Not Allowed Skincare Products During Study

Allowed Products

Not Allowed Products

Gentle, non-active cleanser

Any product containing retinol, retinal, or retinoids

Basic moisturizer (no actives)

Vitamin C or brightening serums

Broad-spectrum sunscreen (SPF 30+)

AHAs/BHAs (glycolic acid, lactic acid, salicylic acid)

Hydrating toner or mist (non-exfoliating)

Peptides, growth factors, serums or creams

Eye cream (non-active)

Anti-aging serums or creams

Lip balm or facial oil (no essential oils or actives)

High-strength niacinamide (above 5%)

Sheet masks (hydrating only)

Spot treatments with acids or actives

Makeup (optional, must be removed before photos)

Exfoliating scrubs or physical exfoliants


In-office treatments (chemical peels, microneedling, lasers)


Facial tools (LED masks, microcurrent, dermaplaning, etc.)


New products (other than those provided in the study)

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