please talk about the tricologist issue because people truly think they’re doctors 😭 not realizing they’re usually just a 6-12 week course with no regulations (that I know of? maybe i can be corrected there)
2025-10-16 05:10:07
54
Scott Holbrook Valen :
I use nizoral once a week. I have thin hair. my hair doesn't feel clean until I use it twice.
2025-10-15 23:42:24
10
ArmadilloLove ❌💜✈️ :
I always thought companies put that on the label so you would run out of product faster and have to buy more faster.
2025-10-17 06:53:58
0
Mol :
I shampoo twice because I wash my hair every three days and it’s full of oil and dry shampoo. If I don’t, my hair isn’t properly clean
2025-10-15 21:26:21
69
Harriet Harrington :
if this is more recent it might’ve come from an interview in R29 or somewhere like that with a cosmetic chemist who talked about shampoo efficacy & how the direction to repeat was taken off when shampoo labeling got more crowded & standardized. she specifically said washing twice was better!!
2025-10-16 17:28:27
0
C Elee :
what is your opinion on the this: we don't need to wash hair with shampoo , we only need to brush it and distribute the oils and that's it
2025-10-15 23:46:03
0
Kakers :
also water hardness. the minerals in hard water interact with surfactants in a way that can make them less effective which means the same shampoo may not give the same results with different water.
2025-10-15 22:19:42
12
Sherra Hintz :
Can you talk about castor oil? Is it helpful for anything really?
2025-10-16 00:20:09
5
thebrownbooksnob_ :
I have dry scalp and even drier skin. I shampoo once thoroughly, take my time make sure I get all areas of my scalp, rinse and hair mask for 5-7 min. That’s it. Most of you don’t need more than once. Jz use a clarifying shampoo once every 4 washes or so and you’ll be fine
2025-10-17 04:13:10
0
Carly🫧 Sensitive Skin Chemist :
Chemist here to say FACTS but also this is largely another clean beauty casualty because brands just don’t use surfactants like they used to lol
2025-10-16 23:07:05
3
kingjulien_xcx :
Hey, so I have really chapped crusty lips, and they have been this way for over three months, any products?
2025-10-15 21:22:07
0
Danielle :
That idea came from manufacturers who wanted to maximize use-up rate.
2025-10-15 21:34:52
37
user64747248051218 :
Meanwhile some people are trying to train their hair like a dog 😭
2025-10-16 17:51:19
3
Jollibae :
i only shampoo twice when im really oily and the first wash has no bubbles lol
2025-10-15 21:42:01
8
brittcurls :
Speak more on trichiologists pls 👀
2025-10-16 01:09:37
30
emily carnes :
hair stylist here!
I 💯 agree!
when clients ask me how often they should shampoo (insert eye roll)...when and if it's dirty boo boo.
if you've got a $hit ton of product in your hair and your using a gentle shampoo and it doesn't take out all the gunk, wash it again.
you can't fix it 🧐
2025-10-16 02:24:24
2
JamieK :
I have never washed my hair twice! I wash mine every other day! 🤷♂️works for me 😁
2025-10-15 21:25:19
2
pppppauupaulinaa :
Im always amazed by your patience with all these gimmicks and things that go directly against MEDICAL knowledge 😂❤
2025-10-16 18:43:22
1
VerifyUser :
Definitely agree! To add, i think because sulfates are generally avoided, i think people (especially those that live where there is hard water) find that the have to shampoo twice even with "harsher" shampoos like clarifying shampoos
2025-10-15 21:25:31
4
Ally K :
Such an easy flow chart for me 😂: is my hair dirty? If so, wash it. After washing it is it still dirty? Wash it again. I agree the TikTok hair advice on here is cray
2025-10-16 16:58:57
1
AnneMarie :
cries in having dry scalp but oily hair 😭
2025-10-16 00:05:46
1
soap :
yes omg soooo many people act like haircare is a one size fits all and everything will work or not work the same for everyone
2025-10-15 23:23:44
1
Eloise :
What is a trichologist
2025-10-16 07:57:42
1
northerngirl090🇨🇦 :
As a hairstylist I agree! Everyone's hair and scalp are different. We have to treat everyone's hair differently. 🥰
2025-10-16 13:42:23
1
Isabel Guerrero :
Hello! What products would you recommend for dehydrated oily skin? Thank you!
2025-10-16 01:07:40
1
To see more videos from user @dermangelo, please go to the Tikwm
homepage.