Name: Youth Code Youth Booster Serum
Brand: L'OREALPARIS
Rating: 3.58 (45 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.

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Tell us about what you liked - texture, results, skin type, etc

Tell us what didn’t work - texture, skin reaction, or why you wouldn’t recommend it

로레알파리

Youth Code Youth Booster Serum

Feels Harsh on Skin

Pills on Skin

Causes Allergic Reactions

Irritating

Causes Peeling

Doesn't Last Long

Slippery

Easily Absorbed

Softens

Improves Skin Texture

Refreshing

Hydrating

Silky

Doesn't Cause Breakouts

Downsides..
1) Limited availability.
While it's listed as discontinued, you can still buy it duty-free. You can only purchase it in-store when traveling abroad.

2) The presence of phenoxyethanol in small amounts is okay, but I noticed it's not at the very end of the ingredient list, it's a bit higher up. This is the biggest drawback.
While it's packed with bifida ferment lysate and other highlighted ingredients, it would be nice if they were all in small amounts, but without quantity indicators, it's hard to know for sure...

Although I enjoyed using it, these uncertainties make me hesitant about repurchasing.

L'Oréal is known for creating a flagship product and then developing similar items under their sub-brands. That's why people say the ingredient composition is quite similar to Génifique. 

Using it, I found it fulfills its role as a boosting serum quite well. The skin's surface feels soft and smooth, probably thanks to the dimethicone. There's a slight warming sensation when applying, which seems typical of fermented cosmetics. It didn't lead to any blemishes.

It contains pro-retinol, but I didn't feel much irritation (or effect), perhaps because it's milder than retinol.

The fragrance is quite strong and cosmetic-like, but I don't mind it. It's probably better than the scent of bifida ferment lysate... haha!

It's generous in quantity and affordable for its volume. I especially like its light feel when used before makeup in the morning.

유스코드 유스 부스터 세럼

The bottle is small, so it runs out quickly. I use two drops on each cheek and one on my forehead. I wish they'd come out with a larger size!

It absorbs quickly and the hydration lasts for a long time. I'm so satisfied that I want to keep using it.

The amount is a bit small. It's odd that I have to write at least 20 characters even if there aren't any real drawbacks. I understand the intention, but I wonder if there's a better way to do this...

It's moisturizing and quite decent. The scent is subtle and pleasant. I apply it up to my neck just before bed. In winter, I layer a cream on top.

Is it just me? My face turns red and feels tingling after using this product.

I got it cheap at the duty-free shop, but the only impression it left on me was a tingling sensation.

The more I use it, the less impressed I am compared to when I first started. I'm wondering if I should stop using it.

When I apply this, my skin feels so moisturized and soft. I always make sure to stock up on it at duty-free shops when I travel.

I mix it with a hydrating cream or regenerating cream. The next day, my complexion looks more radiant than the day before.

There's nothing particularly disappointing about it. From a consumer perspective, I suppose it would be nice if we could purchase good products like this at a lower price.

I received L'Oreal Youth Booster Serum as a sample after purchasing other L'Oreal products. Instead of using it alone, I mixed it with Physiogel before bed. When I woke up, I noticed no tightness in my face, and my skin felt hydrated. I was extremely satisfied with the results.

The ingredients are quite disappointing... I quietly gave it to my mom. My mother's skin is quite resilient, so she likes it and uses it well, unfortunately.

You can get it at a great price at duty-free shops. The texture is like thin mucus, but it absorbs quickly and feels refreshing on the skin.

If you have extremely dry skin, you might find it a bit too tight or not moisturizing enough...

As someone with dry-to-combination skin, this is an absolute must-have for me! It keeps my skin deeply hydrated while absorbing quickly on the surface, leaving it feeling firm and supple. I've been using it for over 5 years now!

While it didn't cause any blemishes, it's a bit disappointing to see some potentially allergenic ingredients listed among the caution ingredients.

It's cheaper when purchased duty-free, and the volume is great for the price. The texture flows with a slight viscosity - not sticky, yet not as runny as a toner. The initial feel is moisturizing, but it finishes with a refreshing sensation.

It's disappointing that there are a few ingredients to be cautious about. The product can be a bit difficult to purchase.

I bought this product because it's popular at duty-free shops. The scent is refreshing, which makes it enjoyable to use. It comes in a dropper bottle, ensuring hygienic application. The consistency is slightly viscous, so it doesn't run like water but spreads smoothly and evenly. I didn't experience any blemishes after use. There's no stickiness at all after application, and the hydration is quite good. I plan to repurchase once I've used it all up.

The dropper isn't great, making it difficult to use up all the product. Perhaps due to the dimethicone, it feels like it leaves a silicone film on the skin. If you apply too much, it tends to pill.

The ingredients are quite similar to Lancôme's Génifique. It's more affordable for the volume and absorbs quickly without feeling sticky. Some say it works even better with another essence layered on top, but I haven't tried that myself.

Apply this first, then follow up with your essence.

After about a month, I didn't notice much improvement. Be careful not to apply too much, as it can pill like dead skin cells if you use too much product.

At first, I felt like it was helping to fade my acne scars, so I was using it well. It dries quickly and seems to absorb well into the skin.

When applying moisturizer and makeup over this, you need to wait a bit. If you apply too quickly, it might cause pilling. Also, don't mix it with BB or CC creams... they don't play well together!

First off, the price is reasonable and it's great for daily use. It applies lightly and after absorption, your skin feels smooth and silky.

Korean Reviews

Youth Code Youth Booster Serum

3 Reviews