(74 reviews)


Why it's great:
TIGHTNECK™ helps to tighten and firm fine lines & wrinkles on the neck and chest improving skin tone, resiliency and elasticity.

Expected restock date is Jul 26th 2024



TIGHTNECK™ helps to tighten and firm fine lines & wrinkles on the neck and chest improving skin tone, resiliency and elasticity.

TIGHTNECK™ Clinical Anti-aging Neck Serum is a rapidly-penetrating, lightweight SmartGel™ scientifically formulated with key anti-aging ingredients Hyaluronic Acid, Vitamin C, Bio-peptides, Green Caviar Extract, Caffeine and Argireline.

How does TIGHTNECK™ work?

Upon application, TIGHTNECK is heated by your body's natural temperature, triggering the absorption of key anti-aging ingredients by your skin. At the same time you will feel TIGHTNECK contract on the surface of your skin, providing you with immediate tightness. The combination leaves you with results you can see and feel in 5 minutes*. After your treatment gently wipe TIGHTNECK from your skin with a damp cloth. NOTE: On average it will take 5 minutes for the serum to dry; your treatment is not fully done until the serum has completely dried on your skin. At times this can take more than 5 minutes (8-10 minutes) depending on your body's natural temperature. 

How is TIGHTNECK™ different from TIGHTEYE?

The skin around the eye area is very thin and delicate whereby loose skin on the neck is thicker. While both products utilize the same technology, TIGHTNECK™ is scientifically formulated to be THREE TIMES STRONGER as TIGHTEYE plus contains three different types of Hyaluronic Acid. Given it is a stronger mixture, you SHOULD NOT use TIGHTNECK™ on delicate eye skin, nor should you use TIGHTEYE™ on the neck area as it requires a stronger formula for proper results.

What is SmartGel™ and is if 100% safe?

SmartGel™ is a liquid which responds to heat in an extremely precise way. Our propriety patented SmartGel™ is 100% safe, non-toxic, fragrance-free and paraben-free.

Does any other anti-aging product on the market contain SmartGel™?

Aside from TIGHTEYE, TIGHTNECK is the only product on the market currently using it and its technology. 

How do I use TIGHTNECK?

Apply a generous amount of TIGHTNECK™ to your neck and upper chest area. DO NOT PAT SERUM ON! Do not be afraid to rub it into the skin, thus resulting in a substantial layer. Leave on for 5 minutes or until the product has visibly dried on the surface of your skin. At the end of your treatment gently wipe TIGHTNECK™ off completely with a damp towel. It is important to remove all product from your skin after your treatment as the gel is not meant to be left on the skin.

How does TIGHTNECK™ work in just 5 minutes?

We have scientifically-formulated TIGHTNECK™ to respond to the temperature of your body at a rapid rate by way of our propriety patented SmartGel™ technology. Please note that due to your body's natural temperature, drying time may take anywhere between 5 and 10/12 minutes. DO NOT WIPE OFF your treatment before the serum has fully dried on your skin.

What are the ingredients in TIGHTNECK™?

Hyaluronic Acid, Vitamin C, Bio-peptides, Green Caviar Extract, Caffeine and Argireline:

  • Hylauronic Acid nourishes and hydrates collagen which gives skin its firmness. Hylauronic Acid keeps the collagen moist and elastic. It also acts as a space filler by binding to water and keeping the skin wrinkle-free.
  • Vitamin C is an anti-oxidant that slows the rate of free radical damage. Free radicals are unstable molecules that damage collagen and cause skin dryness, fine lines, and wrinkles.
  • Bio-peptides are necessary for the skin to increase hydration to the collagen around the neck and chest. Bio-Peptides come into action to give collagen a boost. They also partner with amino-acids which are useful in the retention of skin moisture. Bio-Peptides increase circulation which is essential in giving your skin a healthy, vibrant and youthful appearance.
  • Green Caviar Extract has been proven to lessen key signs of aging: Skin dullness, fine lines, wrinkles, sagging and hyperpigmentation (darkening of the skin) while keeping the skin moisturized. Green Caviar Extract speeds up the natural production of collagen around the eyes by 67%. It is also rich in vitamins and has been shown to slow down the aging process by moisturizing the skin. Caviar Extract firms your skin and provides the highest possible level of hydration.
  • Caffeine contains antioxidants, which help 'perk up' your complexion. Caffeine's ability to constrict small blood vessels and reduce inflammation is an asset in a number of products designed to minimize fine lines & wrinkles. These same anti-inflammatory qualities serve caffeine well as an ingredient in cellulite creams, where caffeine's ability to cause dehydration is put to good use drawing excess fluid from fat cells to improve the skin's appearance.
  • Argireline is the first peptide to reduce wrinkles and expression lines. When applied topically, it alters biochemical pathways involved in muscle contraction so that facial muscles can't contract with as much force. By doing this, it reduces the appearance of dynamic wrinkles. 

Are there any other ingredients in TIGHTNECK™?

TIGHTNECK™ is a patented, proprietary beauty product. Aside from the ingredients listed above the only other items in our product are water and our SmartGel™ base (serum) which is 100% safe, non-toxic, fragrance-free and paraben-free.

Do you test your products on animals?


Is TIGHTNECK fragrance and paraben-free?


Is TIGHTNECK™ safe to use on acne prone or oily skin?

Yes, it is for all skin types; there is nothing in TIGHTNECK™ that will be harmful to the skin.

Can I use more than one coupon code per purchase?

No, you can only use one coupon code or discount code per purchase. 

I received TIGHTNECK™ but serum is not pumping from the bottle. Why is this?

TIGHTNECK™ is formulated to become a solid when it comes in contact with heat (your body's natural temperature will heat the product and within about 5 minutes it will dry on the skin). If you live in a very warm or hot climate and upon receipt of your product no serum is pumping out please put it in your refrigerator for 30 minutes at which point it will turn back into a liquid and will be ready for use. If you are still having trouble with the bottle please email us at info@scienceserum.com

Apply a dime-size amount of TIGHTNECK™ to the neck area. Leave on for 5 minutes OR until serum has completely dried on the skin; it will feel like a very thin layer of tape. DO NOT PAT SERUM ON; apply a generous layer of serum and do not be afraid to rub into skin. At the end of your treatment wipe gel off with a damp towel. It is important to remove all product from your skin after your treatment as the gel is not meant to be left on the skin.

TIGHTNECK™ Serum Reviews

Based on 74 reviews

My 3rd Time Buying!

Posted by Dream on Dec 20th 2022

This serum is so awesome! It works instantly, literally within 10 minutes. It tightens and dries fast and reduces appearance of lines while smoothing skin. I absolutely love it.

Tightness always use when I go out

Posted by Geraldine Shenkman on Dec 17th 2022

I like this product it lifts loose skin. Great product.

You actually see results!

Posted by Angela S on Oct 9th 2022

I was surprised that in even as short as one month I was seeing positive results. I was using the product about 4 or 5x per week. Now I use closer to 3x per week. I've had the first container for 3.5 months and haven't ran out quite yet. Have a backup on hand already though!

Tightneck Serum

Posted by Lisa Maletic on Sep 20th 2022

I use this everyday and couldn't live without it. It definitely helps my turkey neck issue.

Best I've found for lifting neck wrinkles

Posted by Geraldine Shenkman on Apr 30th 2022

I like tightness it gives me


Posted by Guiomar on Apr 4th 2022

Have used this before & was super happy with the results. While I don't have a turkey neck, age & gravity have shortened my neck, making the base a bit crepe-y. Have also been watching my jawline droop, you know, little pouches of skin that I try to camouflage with contouring. While Tightneck isn't on par with a mini-facelift, I've noticed it has taken up some of the slack in my jaw. I even tried a bit on my forehead & what others call marionette lines (I don't have deep ones, but I'm noticing a small development in that direction) & it seemed to tighten up those areas, too. It's been particularly noticeable to me when I wear my 18" chain around my neck. When I took a break from Tightneck, I felt my chain almost drew attention to the neck sags. Lately, not so much!

Tight neck

Posted by Colleen Tanaka on Feb 14th 2022

I am liking this stuff. Just like tight eye it took awhile to see any difference but after a couple of months using it daily I can definitely see the difference. I ordered more cause I don’t want to run out. That’s the only thing I have a problem with is that u can’t see how much product that I have left. My neck is definitely getting to getting tighter. Thank u for a great product


Posted by Debra L Coleman on Aug 27th 2021

This is great stuff! I can really see a difference in my neck after using this product


Posted by Silvia Harrill on Aug 20th 2021

Impressive result.