Name: Perfect Green Hair Loss Symptom Relief Shampoo
Brand: OL-LAB
Rating: 4.35 (94 reviews)

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This is a Health Functional Food certified by the Ministry of Food and Drug Safety (MFDS) of Korea, designed to help maintain and improve your health.

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.

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올랩

Perfect Green Hair Loss Symptom Relief Shampoo

Scent Fades Quickly

Doesn't Create Rich Foam

Oily

Heavy

Lacks Moisture

Slippery

Applies Smoothly

Has Anti-Hair Loss Effect

Has an Aroma Scent

Pleasant Scent

Foams Up Well

Subtle Scent

Moisturizing

Provides Cooling Effect

According to recent articles on cosmetic ingredients and toxicity, this product contains C12-13 pareth, which is made by adding the carcinogen ethylene oxide to C12-13 alcohol, and also contains quaternium compounds, a highly toxic class of quaternary ammonium compounds.
I was going to use it just because of the cleansing power, but I can't do that now. 
It seems like the green criteria on Hwahae have become a bit more lenient over time. The same product is listed as containing quaternary ammonium compounds on the Mamgaida ingredient analysis app.
I'm really worried now, as it may contain 1,4-dioxane, a 2B carcinogen that can be present as a byproduct in the synthesis of benzene and ethylene oxide. 
The app says that for these 6 quaternary ammonium compounds, as long as the vendor's raw material documents confirm no residues, then it's safe to use. But I wish the product page would include those documents so I can verify it myself. 
I contacted the company through their chatbot, but they just said there's no problem, without any proof. If these carcinogenic substances aren't guaranteed to be absent, I don't want to keep using this, even though the performance was so good...

The usage feels refreshing and good. The scent is a cool menthol fragrance, and it really cleans well, unlike the surfactants in regular big-brand products.

퍼펙트 그린 탈모 증상 완화 샴푸

I wish they had a larger size option or even a refill option.

The cooling sensation was great when I first used the shampoo, and I felt like it really helped reduce the heat. And after using it for about a week, people around me commented that my hair looked better and felt so nice when they touched it!!! Haha. The only thing I changed was the shampoo, so I think it's because the ingredients are really good. I'm very satisfied overall!

Aside from the price range being a bit high, I'm satisfied with everything!!!

I don't wash my hair very often, but even though I don't wash it often, I don't get dandruff very easily, so I really like that. 🥰

It was a bit thinner than I expected. Personally, I prefer a slightly thicker formula, so this was a bit disappointing.

The Ollabp Perfect Green Anti-Hair Loss Shampoo had a soft, rich lather that required only a small amount to create a luxurious foam. The fragrance was subtle and not overbearing, making it pleasant to use.
I was pleasantly surprised that this functional shampoo had such a refreshing scent, not realizing it was an anti-hair loss product.
The shampoo contains clinically tested and certified anti-hair loss ingredients, which helped address my scalp concerns and alleviate hair loss symptoms all in one step.
Furthermore, it provided hair conditioning and nourishment, so it felt more like a strengthening shampoo rather than just a specialized anti-hair loss product. This made it suitable for the whole family to use.
Even without a separate conditioner or treatment, it maintained my hair's softness, leaving me very satisfied.

My bangs feel more voluminous than usual.
Even after a few days without using it, my roots feel strong, so it seems to be effective against hair loss. I'm satisfied.
However, the product quantity is a bit low considering the price.

Even though I'm not oily, my hair feels greasy by the evening.
The pump dispenses a small amount, but there's a reason for that.
Two pumps are just right, even for long hair, without needing to do it multiple times.
I've been very careful with the conditioner to avoid making my hair oily.

This review was written by a Hwahae Trial Reviewer 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. Trial Reviewers' reviews undergo the same strict verification process as regular reviews, and if they don't meet our standards, revisions will be requested.

The thick formula creates abundant lather, leaving me feeling refreshed.
There is a slight tingling sensation on my scalp. The minty feeling keeps my scalp cool, and the fragrance is not artificial, making the shampooing experience truly invigorating.

I wouldn't recommend this for oily hair types ㅠㅠㅠ It's so soft that it can make your hair feel a bit heavy and greasy ㅠㅠㅠㅠ Those with an oily scalp should be cautious!

I used to worry a lot about my hair falling out, but I'm so happy to have this shampoo! I've never seen a shampoo with this much lather before!! It's incredibly soft and the foam is just amazing!!! My hair feels so much softer and I'm losing less hair!

After shampooing, don't rinse your hair right away. Leave it for a little while and then rinse. This allows the dust and waste products in your scalp to be washed out! If you have the time, try lathering the shampoo in your hair and letting it sit for a bit, about once a day.

Since I haven't been using it for long, I'm not sure if it's helping with hair loss yet^^ I'll have to use it a bit longer to see the effects~

I thought the hair loss shampoo would be a harsh product used by older men or fathers, but it's such a gentle product that makes my hair soft and smooth^^

The lather is a bit lacking, but otherwise it's just average~!! It's not an exceptionally great shampoo, but a decent, good one!! Since the Hwahae Trial Review period was short, I wasn't able to fully experience the hair loss prevention benefits, which is a bit disappointing. It's on the runny side, so I'll probably use it up quickly.

Usage experience: I felt a cooling sensation and it felt refreshing when washing. I think it will be great for summer! I plan to use it even in winter haha. And you've all experienced that buildup of dead skin under the nails when you don't wash for a few days, right? haha After washing, the dandruff completely disappeared!! The lather is also nice and smooth. But even when I use other shampoos, my hair gets greasy again in a couple days since I have an oily scalp. I've heard a lot about hair loss from always parting my hair the same way, so I was happy when I won the Hwahae Trial Reviewer spot. I'm not sure if washing my hair before showering helped, but I do feel like my hair loss has decreased a bit!! Other shampoos would leave my hair feeling really stiff, so conditioning was a must. But this one isn't as bad as the others!! The scent is also nice!! The lather isn't super abundant, but it's not inconvenient either. Use this shampoo with the expectation of less hair loss, rather than more volume. And the shampoo bottle is so pretty, those of you who care about bathroom decor will probably want to display it!

Since this is a functional shampoo, I think I need to use it for a longer time to see the effects. As I've only used it for about a week, it's difficult to give a definite answer, which is a shame.
But it seems worth trying at least once.

I have always been worried about my thinning hair, so I started using a hair loss shampoo.
This shampoo is different from other shampoos I've tried (I've used many well-known shampoos). After washing my hair, the feel of my hair is different. Even though it's clean, it feels like there's a coating on my hair. I'm not sure if this helps prevent hair loss, but lately my hair seems to be growing faster and I have more volume.
The bottle is transparent, so it's easy to see how much is left, and the amount is generous, which is reassuring!! The scent is also quite pleasant.

 If you massage the shampoo thoroughly and let it sit for 1-2 minutes before rinsing, the refreshing feeling is doubled ✌

 1. The fragrance has a rather harmless feel, so it doesn't last very long.

2. While my scalp overall feels healthier, I've noticed some pimples popping up in certain areas. Since I've had a tendency to get pimples in those spots before, I'm not sure if it's due to the shampoo, but it doesn't seem to be able to prevent the pimples. This is the reason for the -1 star rating. I'll re-evaluate this aspect after using it for a few more days.

 It's become endearing to me. When I usually run my fingers through my hair, strands seem to fall out more frequently, and the hair roots also look weaker... I'm not sure about the exact amount of hair loss, as I don't have significant signs of hair loss yet, but the fact that my scalp feels healthier has given me a sense of psychological stability haha. I would recommend this to those in the early stages of hair loss or those like me who are worried about hair loss starting due to a weakened scalp!

Thoroughly wetting the scalp and hair with water before shampooing seems to help the shampoo lather up nicely and provide effective cleansing.

✔Fragrance
The shampoo has a subtle herbal scent when shampooing, but it disappears quickly, so the fragrance doesn't last long.
This could be good for those who dislike strong shampoo scents.

✔Dryness of Scalp and Hair
Since this is an anti-hair loss shampoo, it doesn't leave the hair and scalp as moisturized as some other types. 
I'll need to use a separate hair essence to keep my hair hydrated.
Additionally, my husband has some dandruff and scaliness, and he found that his dandruff worsened after using the Olap shampoo.

I am a woman in my 30s with a dry scalp and dry hair.
Even normally, a lot of my hair falls out, which is stressful. After shampooing, a handful of hair falls out.

✔Ingredients
I've recently experienced some scalp issues, so I've been cautious about changing shampoos. But this one has no allergens, and the scalp issues I had before disappeared.
The good ingredients mean I can use this product with confidence.

✔Lather and Cleansing Power
Usually, gentle shampoos don't lather well, so I'm unsure if they're actually cleaning my hair. But this product lathers nicely, and I felt refreshed after washing.

✔Anti-Hair Loss
I was really worried I'd go bald, the way my hair was falling out. But after using the Olap shampoo, the noticeable hair loss has significantly decreased.
My hair also feels stronger.
I normally do yoga and Pilates, and after each session, there would be 6-7 strands of hair on the mat. But after using the Olap shampoo, there's hardly any hair left on the mat.
The amount of hair left in the drain after shampooing has also noticeably decreased.