This is not just friction hyperpigmentation. it is known as acanthosis nigricane which is cause by insulin resistance ( that’s the main underlying cause) until that is fixed these serum wont do much. Maybe contribute it to be a little lighter but not completely reverse it for that you need chemical peels and have to fix insulin resistance ( these are usually found in people with diabetes and pcos)
2026-06-01 10:45:40
19
pisces♓ :
Im using kojic acid serum and tranexamic acid lotion
2026-06-01 14:08:46
12
Airee :
Since most people have dark underarms, maybe it’s actually normal? We try to lighten them, wasting a ton of money, time, and stress in the process. It’s so annoying.
2026-06-05 18:50:25
28
Serena :
I love the Seoul Retinal! 🥰
2026-05-31 18:43:03
5
Hani :
is retinal better or azaleic acid or both?
2026-06-07 14:29:00
2
Pablucci :
Are you using everyday????
2026-06-06 05:05:42
0
𝘚𝘢𝘯𝘢𝘢 🦢 :
Can I use it with glycolic acid??
2026-06-01 00:36:05
2
ً :
Can i use this after shaving? I’ve got a lot of hair growing
2026-06-01 04:28:03
2
D💌 :
What’s the difference between retinol and retinal?
2026-07-18 15:04:01
0
★ :
Is it safe to use facial products on sensitive areas?
2026-06-02 06:09:45
2
✝️❤️ :
It’s good for sensitive underarms
2026-05-31 21:38:23
0
BLEEDING THOUGHTS :
what about dark forehead 🤔
2026-07-25 09:34:35
0
Saring☘️🏵️ :
so tell me where can I purchase one???🙏🙏🙏
2026-07-06 08:22:04
0
danniyelldaily🏳️🌈 :
groin area too
2026-06-13 12:04:05
0
Cheeky kitty :
I used that on my face but it cause pigmentation on my cheek
2026-05-31 17:41:02
1
hellobabe39 :
where can you get them
2026-07-23 19:45:37
0
Jira Jira :
😇😇😇Thanks
2026-05-31 10:02:55
1
v1nkil :
AD??
2026-06-01 08:45:43
0
🎀Olivia🎀 :
retinal or azelaic acid?
2026-06-12 05:02:50
1
raf :
@oreoleo how to use the ksecret retinal serum in dark elbows and knees? 2-3x a week at night?
2026-06-16 20:59:39
3
gseaya :
😳😳😳
2026-06-01 19:33:22
1
nrmnie 💎 :
🥰🥰🥰
2026-06-30 09:19:07
0
Izzathul Farhana :
@fiq
2026-06-18 03:50:45
0
ashcanada0 :
👑👑👑👑👑👑👑
2026-06-13 23:58:32
0
Salsaajalah :
@aliminati
2026-06-05 04:53:25
0
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