Name: 20% Vitamin C + E Ferulic Acid Serum
Brand: Timeless
Rating: 4.75 (4 reviews)

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타임리스

20% Vitamin C + E Ferulic Acid Serum

Doesn't Sting

Improves Skin Tone

Improves Skin Texture

Hydrating

It's recommended to apply the next step after this product to ensure effective absorption.

As this is an imported product, there was some inconvenience with the shipping.
There are no other inconvenient points.

I chose this product because it contains vitamins C and E and also has a good cost-effectiveness. While the visible effects may not be extremely noticeable, I still use it because I feel uneasy when I don't. 
My skin is sensitive, but I didn't feel any stinging or irritation.

(해외) 20% 비타민 C + E 페룰릭 애씨드 세럼

 You should apply it to the forehead 1, chin 1, left cheek 2, right cheek 2, and then apply a lotion or cream type product about 1 minute later. This is because if the pH concentration changes due to the moisturizer, the effectiveness will also decrease.
You also know that if the discoloration is severe, you should stop applying it, right? Refrigerator storage is recommended, but sudden temperature changes are not good for cosmetics, so once you put it in the refrigerator, you should keep it there.

I added Dr. Different 0.1 'Retinal' (next-generation retinol, developed by Kolmar using liposome technology) Forte to this product. Vitamins and retinol can be used together and have good synergy.
In the evening, I use the vitamin + retinal ampoule, and in the morning, I use the niacinamide ampoule.

However, if you use pure, highly acidic vitamin C together with a high concentration of the vitamin B niacinamide ampoule, it can cause the side effect of blood vessel dilation. Even though the toner only contains less than 5% of this, my face turned red, so I stopped using the toner altogether.
(There are people on YouTube who follow the vitamin CBA routine with pure vitamin C as recommended by a dermatologist, but the vitamin C they used was just vitamin added, so using a high-concentration niacinamide serum didn't cause any irritation. That doctor also mentioned not to use pure vitamin C together.)

 I need to do direct overseas purchase, but there are no reliable sellers. Managing oxidation is important, and there are many counterfeit cosmetics, so I'm considering switching to a domestic product because of this...
(It stings, but stinging is normal. If the pH is acidic, the vitamin effect is better, and pH 3 is said to be the best.)

Among domestic products, Innisfree or Dr.G's seed-based products (but the pH is 5...) are said to have a similar innovative concept to Skinceuticals, with good cost-effectiveness.

 The types of ampoules are ineffective and have unnecessary functions, so you should definitely buy the vitamin CBA type (vitamin C 15-20 or more is unnecessary). It contains antioxidant ingredients that help prevent photoaging. There is a reason why dermatologists keep talking about vitamins.
My basic routine is a vitamin CA ampoule - a moisturizer (since I have oily skin, I use a lotion instead of a cream with a high oil content). That's it. Go on a cosmetic diet.
This product is a preferred vitamin C serum because the full ingredients are simple.

There was a very good explanation in the review, so I'll briefly write about the vitamin combination. This product is a slightly modified version of the patented vitamin combination (pure vitamin C+E+ferulic acid) by Skinceuticals, and it became known after blogger Heo-jeong-nim recommended it on Reddit. There is a more affordable version called Pureador, which also contains retinol, a form of vitamin A, so it is said to be more effective. I chose the Timeless vitamin because I want to use a less irritating retinol in the future.

Skinceuticals' patent will expire in a few years, so more cost-effective vitamin CE ferulic products will likely come out on the market then.

I use this product in the morning and a retinoid in the evening.
Using it in the morning helps protect my skin from daytime UV exposure and free radicals.
The pH is quite low, so those with sensitive skin should either avoid it or start very cautiously.
Storing it in the refrigerator can help slow down oxidation.
Considering the oxidation, it's recommended to use it within 3 months of opening. Using it sparingly and for too long can significantly reduce its effectiveness as it oxidizes.

The cosmetic pump packaging is a hit-or-miss - I ended up with a defective one. They may have addressed this, as I heard they recently changed the pump, but the previous version I had didn't leak at all, while the new one leaks a bit when I pump it.
Also, since this is not a domestically released product, it has very low accessibility for those unfamiliar with direct imports.

I bought this product after seeing many recommendations on Reddit and have been using it since. The Skincare*** ce ferulic is an affordable option. They've replicated the patented blend of 20% vitamin C, 1% vitamin E, and 0.5% ferulic acid, while setting the pH to 2.4 to sidestep the patent. And they've priced it quite reasonably.
I've seen the most effect on my post-blemish redness and skin texture. I do get regular pulsed-dye laser treatments and plan to continue doing so, so I didn't have high expectations, but it has definitely been more effective than not using it for those two areas.
Additionally, the pump packaging helps slow oxidation more effectively compared to the Skincare*** products.

The instructions say to dispense the product onto your fingertips, but that is not feasible.
The formula is watery and immediately runs off, so directly pumping it onto my face doesn't work either, as it just spreads all over and gets absorbed quickly, making it impossible to apply evenly across my entire face. Instead, I found it works better to pump the product into the palm of my hand a couple of times and then gently pat it onto one side of my face.

I purchased this product for 4.6 after receiving a 20% discount coupon from the official website.
I hope I can find this product at a more affordable price from a reliable seller in Korea.

I thought this product would be very irritating since it contains 20% pure vitamin C. However, even after applying a good amount, I only experienced a slight stinging sensation for a brief moment, with no major irritation. Overall, it has improved the texture of my skin and made the dull areas look more refreshed. It has been effective on the darker areas of my face. Even 10 hours later, my skin still looks moisturized, which I found quite impressive.

Timeless 20% Vitamin C + E Ferulic Acid Serum Reviews

1 Reviews