Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. There is one great coupon!
Link: Banggood product page
Coupon (57.33 USD): BGHB20
(CouponsFromChina.com tip: put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Old coupons (from the oldest to the newest): 753f37, KCASAVision, ML15%Pro, vipupgrade8, BGSR15, BGNOV5, BGBFHC28, BGKCASAFB
(these coupons are old, so probably won’t work)
Price history and price alert
Price history (for all/most countries) for KCASA IPL Laser Epilator is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).