You did it! Y'all created some AMAZING, INCREDIBLE, STUNNING, JUST-WOW (shall we stop?) content for the first mission. It was incredibly difficult trying to pick 3 top reviewers but it had to be done! So here we go! 


Top 3 reviewers:

  • @carlton.rose
  • @sandhamwich

* Your $200 gift cards to be used on have been sent! (valid for 2 yrs)


Special mentions:

  • @thelizjane
  • @nvemaa

* We'll be sending you a special COSRX gift too! Look out for it in your next COSRXDERMRD package 



🚩 All About Retinols with Dr. Luke Maxfield, D.O. Board Certified Dermatologist and Mohs Surgeon 

🚩 All About SPFs with Dr. Jarett Casale, D.O. Dermatology Resident Physician  





🚩 FAQs: 

🔎Q1. What age is it best to start using retinols?
Anytime you think is necessary! It all depends on your goals. If you want to use it to target acne you might start using it a little earlier. Or you might choose to start using it when you start to notice newly emerging fine lines. Remember the goal is to prevent not undo. 
🔎Q2. What's the best way to use retinol under your eyes?
The skin around the eyes is very thin so be careful when applying. Start with a very small amount a few times a week. 
🔎Q3. Can you layer both retinols together?
This is not recommended. Go for the cream if this is your first retinol, you have sensitive skin and have just started to notice emerging fine lines. Go for the oil if you are a seasoned retinol user and want to target initial and progressive skins of aging. 
🔎Q4. Is the Retinol Oil suitable for dry skin?
Absolutely! The 0.5 Retinol Oil contains an ingredient called Squalane, which is known for its hydrating properties, making it great for those with dry skin. 
🔎Q5. Which skin type do you recommend the Retinol Cream for?
Are you a first time Retinol user? This will determine which product you should be using, rather than your skin type. For those who are new to Retinol, we would recommend that you start off using the Retinol 0.1 cream. Once you get used to the ingredient, or you have been using Retinols already, you can simply move on to the 0.5 Retinol Oil
🔎Q6. What order should you apply the retinol?
Personalize it to your skin! If you have sensitive skin prone to irritation try a retinol sandwich. That is, moisturizer > retinol oil > moisturizer. If you don’t have sensitive skin, we recommend starting with a toner>serum>cream. Apply your Retinol cream when applying your daily cream, and your Retinol Oil, when applying  your serums. 
🔎Q7. Why do chemical sunscreens burn my eyes?
Most chemical sunscreens contain certain ingredients such as benzophenone, avobenzone, and Ethylhexyl Methoxycinnamate that prevents UV rays by transitioning into heat energy, before the UV rays absorbs into the skin. These ingredients send to sing your eyes, and may cause irritation if your eyes are sensitive. If that is the cause, using a physical sunscreen can be optional. 
🔎Q8. When applying retinols should this be done to dry skin?
Wet skin absorbs more. So this depends. If you have sensitive skin and want it to be less irritating, apply retinols to dry skin. If you're OK, then damp skin works too. 
🔎Q9.  Is it normal to get really, really dry skin when incorporating retinols?
Retinols can cause irritation, redness, peeling and dry skin. Our cream includes Pnathenol, and our oil includes Squalane, both preventing dryness of the skin. If your skin still feels dry after using the products, add a moisturizing product at the end of your routine.

Another tip is to start small with retinols! Apply a small amount, every other day until your skin builds tolerance. You can even try a retinol sandwich which goes moisturizer > retinol > moisturizer.
🔎Q10.  Should we keep the retinol in dry cool areas away from the sun 
Retinols were weak to light, heat and oxidation so it is best kept refridgerated. If this is difficult, try storing it in a cool, dry place away from direct sunlight. 
🔎Q11.  Can you use the retinol on the neck too or is it too strong?
Absolutely. The neck is subject to a lot sun exposure and aging so go for it! Just remember to start small, a couple times a week giving your skin plenty of time to adjust. 
🔎Q12. Should we use snail mucin before or after retinol?
Before and after both work! 


🚩 This month's quiz:



  •  Couldn't make it to the online Derm Talk? That's OK (we get it, life right?)
  • Just make sure to send the answers to the above questions to
  • This will act as attendance!

* This is due 08th Sept by 9am KST (7th Sept 08pm EDT / 7th Sept 05pm PDT)



🚩 Mission Guidelines


  • The Retinol 0.1 Cream
  • The Retinol 0.5 Oil
  • The Vitamin E Vitalizing Sunscreen SPF 50+

Sneak preview of the retinol "microsope" you'll be getting in the mail SOON!



* PSST! We've also got a giveaway planned so you can win these babies for your followers / loved ones so make sure to keep a look out on Viber!


🚩 Mission Submissions

  •  Create and upload contents on your social media (Tiktok, Instagram, Youtube etc.)
  • We recommend you post on all your platforms
  • Submit the link, clean and edit ver. of your content to

*Clean version: Devoid of additional effects such as subtitles, overlays or music
*Final version: The content posted on your social media(s)


🚩 Required Tags


  • TikTok: @cosrx_official
  • Instagram: @cosrx
  • Facebook: @cosrxglobal
  • YouTube: @cosrx


  • #COSRX #COSRXDermRD #COSRXDermSkincare

* These tags are mandatory! No tags = no submission!



  • October 2nd 03:00 PM (Sunday, KST)
  • October 2nd 02:00 AM (Sunday, EDT)
  • October 1st 11:00 PM (Saturday, PDT)

* Please meet the deadlines! This is incredibly important!



  • 1 GPA point for lecture attendance (if you couldn't attend, your answers to the pop quiz will act as attendance)
  • 3 GPA points for main mission submission 

* All report cards with this information have been sent out so you can keep track of your GPA

* $100 gift cards have also been sent to your inboxes. This must be used by 29th Sept.




🔎Q1. How do I submit my mission content?
Upload you content on your social media, and send us the link, clean and edited version. Don’t forget to
tag us and add all the necessary hashtags!

🔎Q2. What do you mean by clean & edited content?
Clean refers to your content without the music and text. Edited refers to the final version of the content

🔎Q3. Can you use all RX products together?
The Vitamin C 23, The Niacinamide 15, The Retinol 0.1 Cream & The Retinol 0.5 Oil are all highly concentrated and incredibly potent. So, we don’t recommend mixing these together! That said, The Hyaluronic Acid 3 is a great serum to mix with pretty much all ingredients! So feel free to layer up!


- That's it! -
Feel free to reach out with any questions! 


September 02, 2022 — COSRX