Against placebo
50 participants · double-blind · 4 months
In a randomized trial, mean MASI was 7.2 with 5% cysteamine and 11.6 with placebo at four months (P=.02).
10% Cysteamine · Rinse-off ritual
Your skin, illuminated.
A once-daily, rinse-off cysteamine ritual for the appearance of unwanted discoloration and uneven tone.
10%Cysteamine
30Minutes, then rinse
50mL / 1.69 oz
Why Illuminate Rx
Less noise. One focused ritual.
Uneven-looking tone can make a skincare routine feel endless. Illuminate Rx keeps the ritual focused: apply once daily, wait 30 minutes, rinse.
Who it’s for
Adults 18+ · All skin types
For the appearance of unwanted discoloration and uneven tone.
10% Cysteamine Pigment Corrector Complex · 50 mL / 1.69 oz
Straightforward value
10% cysteamine. $129.
Cyspera’s official U.S. store currently lists Intensive products from $150 to $207.57. Its primary Intensive page states 7% cysteamine.
Even against the lowest current official U.S. listing, Illuminate Rx is $21 less.
Illuminate Rx
- 10% cysteamine — as labeled
- $129
- 50 mL / 1.69 oz
Cyspera Intensive
- 7% cysteamine — as labeled on the primary listing
- Official U.S. listings start at $150
- Package sizes and listings vary
The percentages above are the concentrations stated on each product’s current label or official listing. Concentration alone does not establish comparative clinical efficacy.
Prices and product information checked August 4, 2026. Formulas, package sizes, and directions differ. Cyspera is a trademark of its owner.
Published research
Research on other cysteamine formulations.
These studies evaluated other products, concentrations, and use protocols. They did not test Illuminate Rx 10%, do not establish results for Illuminate Rx, and do not show that a higher concentration works better.
Compared with hydroquinone
40 women · evaluator-blinded, quasi-randomized · 120 days
Mean mMASI fell 38% with 5% cysteamine and 53% with 4% hydroquinone at day 120 (P=.017). Standardized-photo improvement did not differ significantly between groups.
Compared with kojic acid + vitamin C
72 randomized; 70 analyzed · open-label · 16 weeks
Mean mMASI fell 12.25% with Cysteo 5% and 10% with 2% kojic acid plus vitamin C; the between-group difference was not statistically significant.
More controlled studies
Published study photographs.
One open-access randomized study includes baseline and follow-up photographs from its 5% cysteamine and comparator groups. View them only in the original article. They are not Illuminate Rx results.
The 2015 and 2018 placebo trials each list one author affiliated with Scientis Pharma SA; Scientis Pharma SA and Sharaje SA supplied the cysteamine and placebo creams. In the 2021 modified-Kligman comparison, Scientis SA supplied the cysteamine cream. The 2022 hydroquinone/ascorbic-acid comparison lists one author affiliated with Scientis SA. The 2025 kojic-acid study lists four Glenmark employees; Glenmark supplied study materials and assisted with data collation, analysis, and manuscript preparation. One additional author was employed by Mascot Spincontrol India Pvt. Ltd., which supported the study’s clinical operations.
How to use
Thirty minutes. Four clear steps.
- 01
Start with dry skin. Do not wash immediately before applying.
- 02
Apply a thin layer once daily, in the morning or evening. Leave on for 30 minutes.
- 03
Wash off with a gentle cleanser and pat dry. A warming sensation or mild tingling may occur and can last up to 30 minutes.
- 04
Moisturize. During the day, use broad-spectrum sunscreen with SPF 30 or higher.
For external use only. Do not apply to mucosal areas or broken, infected, or irritated skin. Follow the product packaging.
Full formula
Everything, in plain sight.
The complete current ingredient list supplied by the manufacturer.
Born at Kirsch Dermatology
A patient favorite, now available beyond our practice.
Illuminate Rx grew out of Dr. Brandon Kirsch’s clinical practice at Kirsch Dermatology in Naples, Florida. It became a favorite among existing patients. We wanted to make the cream available beyond the practice, so you do not have to live near Naples to purchase it.
Illuminate Rx is affiliated with Kirsch Dermatology and was founded by board-certified dermatologist Brandon Kirsch, MD.
Before you begin
Read this before use.
Warning: Do not use if allergic to any listed ingredients. Do not use product if pregnant or breastfeeding. Possible side effects include redness, dryness, irritation of skin, burning sensation. If you suspect possible allergy to product, immediately discontinue and consult a doctor. If the product comes in contact with your eyes, irrigate with water. Keep out of reach of children. In case of accidental ingestion, contact poison control.
Questions
Questions.
Make thirty minutes count.
10% Cysteamine Pigment Corrector Complex · 50 mL / 1.69 oz
$129