KERASTASE Simon Thermic Reviews

Name: Simon Thermic
Brand: KERASTASE
Rating: 4.29 (256 reviews)

4.29

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15 Reviews

라로시카
Mar 22, 2025
Combination SkinSensitive SkinAcne Skin
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Pros
I really love it. It's a lotion formula, but there's no stickiness at all, so it's like applying a moisturizing lotion. I've been using it consistently, and for the first time ever, I received a compliment at the hair salon about how nice my hair looks (my hair was previously a bit damaged). The citrus scent is also very refreshing and I love it. I always apply it before blow-drying my hair.
Cons
The only flaw is that the price is a bit high. However, I continue to repurchase it regularly.

s2naa
Mar 1, 2025
Oily SkinSensitive Skin
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Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.
Pros
The scent is refreshing (like grapefruit? perfume) and it absorbs quickly into the hair. There is no residue left on the hands.
Cons
I'm not sure if this is as good as they say. It was supposed to be glossy and all, but it's actually a bit dry and fresh lol It's quite expensive too I'm not sure if it's as helpful as they claim There are a lot of good domestic products these days too... These days, I can only buy imported ones since direct purchases are blocked So it's really expensive....... The scent is kind of like grapefruit, but the effects are just so-so lol ; I think it's best to just find a product that suits you well.

army188
Oct 6, 2023
Dry SkinAcne Skin
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Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.
Pros
I use it because the fragrance is so nice. It's a common form these days, with a gel cream-like feel. I use it mainly for the refreshing grapefruit scent, rather than for its functionality. It's also convenient to use as a leave-in treatment.
Cons
There's nothing really disappointing, but it does have less of a shimmery effect compared to oil essences.

jiimii
Feb 20, 2022
Oily SkinSensitive SkinAcne Skin
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Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.
Pros
After trying this, I just can't use other hair essence products anymore 😭 First of all, even if I fail to control the amount, it will never leave my hair greasy, and it seems to do a pretty decent job at protecting my hair. And the scent is just so perfect for me... It's a refreshing citrus fragrance, and I feel so good every time I apply it 😭 The scent also seems to last quite a long time!
Cons
The price, though 😭 If not for the price, this would be a product I'd stick with for life~~ But it seems like Sephora and the like often give out lots of freebies and have frequent discounts on the price.

우윤경
Aug 22, 2020
Combination SkinSensitive SkinAcne Skin
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Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.
Pros
The fragrance is amazing, I just want to keep smelling it. It has a refreshing grapefruit scent.
Cons
It doesn't have a big effect, but it's still better than not using it at all..

좋아서하는건데
Feb 29, 2020
Dry SkinSensitive Skin
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Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.
Pros
- Hair condition Slightly curly, relatively thick hair 1. When applied before heat treatment, it is very satisfactory as it is certainly less damaging and does not feel dry. Compared to just blow-drying or using a curling iron, the hair feels better after applying the product and drying. 2. The scent seems to be a matter of personal preference, but I like the scent. It has a refreshing grapefruit-like aroma, and the scent does not seem too artificial, which I find quite pleasant. 3. The formula has a lot of moisture, which is well absorbed into the hair. Also, a small amount was sufficient to apply to the entire length of the hair.
Cons
1. The price range is a bit high considering the volume. 2. While it was once difficult to find a product as good as Kérastase, nowadays there are many good alternatives, so the value for money is not as significant.
Tip
Using this product along with other hair treatments or hair care products may help manage your hair even better~

엘리사벳.
Dec 3, 2019
Combination SkinSensitive SkinAcne Skin
Review under verification
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Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.
Pros
The citrus scent is really nice and the absorption is great If you dry it thoroughly, it definitely has a nice sheen and doesn't get oily over time, which is great.
Cons
While the absorption is good, I ended up using too much. And if you don't heat treat it, the effects are minimal, which is a bit of a hassle; I didn't know the ingredients were not that great either.
Tip
Drying or using a curling iron is a must!

초록보라
May 12, 2019
Combination SkinAcne Skin
Review under verification
The content is currently being reviewed by the Hwahae operations team, and the verification will be completed by the next business day (excluding weekends and holidays) from the date the review was written.
Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.
Pros
I'm using the second bottle now The fragrance is very, very nice! A refreshing citrus scent I'm quite sensitive to fragrances, but this one doesn't make me feel nauseous and I really like it. And since it's a light essence type, it doesn't feel heavy on the skin.
Cons
The price... It's burdensome if you don't buy it from duty-free. And I'm also not sure if it provides adequate care (as a person who frequently dyes and perms their hair)

멍이뇽
Feb 15, 2019
Dry Skin
Review under verification
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Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.
Pros
If you have long, damaged hair, wet hair brushing is absolutely not recommended. Apply this product and let it dry, and the tangled hair will be effortlessly untangled! The scent (grapefruit) is so lovely, and the softness lasts long after application, making it the best choice. I no longer use hair treatments! You can maintain soft, smooth hair without treatments or conditioners, and it can even prevent excessive hair loss that often occurs with treatments. It also prevents static electricity in the winter and eliminates tangles, allowing you to enjoy a silky, smooth hairstyle. Even when applied generously, it never feels heavy or greasy - it's simply the best.
Cons
The price difference between direct import and regular purchase is way too much ㅜㅜ The lightweight feel means you end up using much more than expected. It's about 100 won more than a 500 won coin, and I feel like I can't even use it for two months..

희퍼플
Feb 6, 2019
Dry SkinSensitive Skin
Review under verification
The content is currently being reviewed by the Hwahae operations team, and the verification will be completed by the next business day (excluding weekends and holidays) from the date the review was written.
Reviewed by The Hwahae Testers
This review was written by The Hwahae Testers who received the product for free and evaluated it with a sense of representing Hwahae. The review is completely unbiased and honest, with no guidelines or restrictions. Reviews by The Hwahae Testers undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.
Pros
👍Fresh Scent It has a grapefruit scent. The fragrance seems to suit the summer well. 👍Rapid Absorption It absorbs well on both wet and dry hair. As it absorbs without any stickiness, it's great for styling. 👍Highly Moisturizing Treatment It's not oily and feels very moisturizing. It would be good to try it out once to balance the moisture and oil levels of your hair.
Cons
👎Skin Irritation Breakouts occur on the areas where the hair touches (sides of face, back of neck, back). If you have sensitive skin, be sure to check the ingredients carefully before purchasing. 👎Value for Money I'm not sure if the effect is worth the price. At first, it felt like it really drenched my hair in moisture. Hair damage was also reduced. However, as I used it more, the product's effectiveness seemed to diminish. I've used it for a total of 2 bottles, but it seems like this treatment doesn't work for me.