Fuller Active Hair Serum (2 Bottles - 60 Days)
Fuller Active Hair Serum (2 Bottles - 60 Days)
Waffled Microfiber Hair Towel Oversized. Eco-Conscious. Designed for Hair Wellness.
Couldn't load pickup availability
Cruelty Free
Paraben Free
Silicone Free
Gluten Free
Phthalate Free
Sulfate Free
FULLER Active Hair Serum features a highly-concentrated, cruelty-free, and clean formulation of clinically-proven active ingredients designed to promote immediate volume, hair density and thickness. This scientifically advanced formula revitalizes and balances the scalp while hydrating and weightlessly volumizing hair for an overall healthier and fuller look. Featuring a blend of high-performance ingredients including Redensyl, FULLER Active Hair Serum yields overall healthier hair with an improved appearance of fullness, strength, and thickness.
WHAT IT DOES
WHAT IT DOES
- Reduces mechanical friction against the hair cuticle — the leading cause of frizz and breakage during drying
- Absorbs moisture up to 3× faster than traditional cotton terry cloth
- Preserves curl pattern, wave definition, and natural texture on every hair type
- Featherweight construction — comfortable to wear for 10–30 minutes without tension at the hairline
- Quick-dry fabric means no mildew, no odor, ready again by morning
- Protects color-treated and chemically processed hair from additional stress during the dry phase
- Works for all hair types — fine, thick, straight, wavy, curly, coily
THE SCIENCE OF GENTLE DRYING
THE SCIENCE OF GENTLE DRYING
Hair damage during drying is not about how long it takes, it's about friction. When a traditional terry cloth towel contacts wet hair, the looped fibers snag and abrade the cuticle, roughing up the very surface that protects strand integrity. This is why even air-dried hair can look frizzy, dull, and prone to breakage if the drying method is wrong.
GENTLER's waffle knit structure works differently. The grid-woven microfiber creates a surface of micro-pockets that pull moisture away from the strand through capillary action, absorbing without rubbing. The ultra-fine fibers are smooth at a microscopic level, meaning they glide over the cuticle instead of disrupting it.
The result is a drying experience that works with your hair's biology, not against it, preserving the cuticle, reducing frizz at the source, and protecting everything your KYIR actives are working to build.
HOW TO USE IT
HOW TO USE IT
Make the drying step count
Your hair is still absorbing everything from the shower. This is the moment to protect it, not rush it.
- Flip your hair forward. Place the wider end of GENTLER at the nape of your neck with hair gathered inside, no rough squeezing.
- Twist upward toward the crown, keeping tension loose. GENTLER does the absorbing, you don't need to compress.
- Tuck the tail to secure. Leave on for 10–20 minutes. Apply Fuller to your scalp now while you wait, the serum absorbs immediately, towel won't interfere.
- Unwrap. Your hair is 70–80% dry, cuticle intact, ready for Stronger or your styling routine.
FOR YOUR HAIR TYPE
FOR YOUR HAIR TYPE
For straight or wavy hair:
Flip your hair forward and position the towel so the loop sits at the nape of your neck. Gently squeeze to remove excess water, then wrap and twist the towel around your hair. Secure by tucking the tail through the loop for a comfortable, stay-put fit.
For curly hair:
Follow the same steps to absorb water from damp hair and secure in place. Leave GENTLER on for as long as needed, oruse it as a plopping wrap to minimize frizz and maintain your natural curl pattern.
For coily hair:
Blot gently with GENTLER to remove excess moisture without disrupting texture. Depending on your styling ritual, wear it as long as necessary to help lock in hydration and prep hair for post-wash styling.
CARE INSTRUCTIONS
CARE INSTRUCTIONS
Machine wash cold, tumble dry on low heat.
• Avoid bleach; for stains, pre-treat with a mild stain remover before washing.
• Do not hang by the loop to dry, this can stretch the elastic over time.
-
Stronger Active Hair Bonding Serum Spray, 100ml/3.4oz
Regular price $68.00 USDRegular price Sale price $68.00 USDUnit price per -
Healthier Hair Supplement
Regular price $72.00 USDRegular price Sale price $72.00 USDUnit price per -
BundleStimulating Scalp Duo
Regular price $95.40 USDRegular priceUnit price per$106.00 USDSale price $95.40 USDBundle -
Fuller Active Hair Serum (2 Bottles - 60 Days)
Regular price $133.20 USDRegular priceUnit price per$148.00 USDSale price $133.20 USDBundle -
Fuller Active Hair Serum (3 Bottles - 90 Days)
Regular price $188.70 USDRegular priceUnit price per$222.00 USDSale price $188.70 USDBundle -
BundleHealthier Hair Inside + Out
Regular price $151.30 USDRegular priceUnit price per$178.00 USDSale price $151.30 USDBundle
@lovekyir
This hair serum effectively reduces hair loss and promotes fuller, healthier hair. Customers said "this product works" and noticed results within 3 weeks. Features clean ingredients and a refreshing natural scent. Successfully stopped hair shedding for customers with lupus and general hair fall concerns.
Used it for a short time
For now I like it- less hair falling and better hair shine
Will continue to use it
Hi there! We're so glad to hear you're seeing positive results with our Fuller Active Hair Serum. Thanks for sharing your experience, and we look forward to supporting your hair care journey. Enjoy your continued use!
Part of my daily regimen! I love partnering it with STRONGER too.
I have tried everything. This serum was exactly what it said! I took before and after as the email suggested. You have a forever customer :). What a difference!
I have been using the Fuller Active serum for 60 days, and I am truly amazed by the improvement in my hair. I am thoroughly impressed and am now placing my third order. My friends have also noticed the positive changes. If you're looking for a product that delivers results, KYIR is undoubtedly the best option!
We’re so thrilled to hear about your amazing results with KYIR’s Fuller Active Serum! ✨ Stories like yours are exactly why we do what we do — clean, powerful ingredients that actually deliver. The fact that your friends are noticing the difference too? That’s the kind of transformation we love to celebrate! We cant wait to see another 60 days!
WOW is all I can say! And I think you can see why in my pic. This is ALL NEW GROWTH HAIR!! I have been using this serum daily for about 3 or 4 weeks now, particularly focusing along my hairline, and this morning when I woke up with my hair in a bun, I looked in the mirror and was shocked. Thank you so much, KYIR!
Wow, thank you so much for your amazing feedback! We're thrilled to hear about your new hair growth and that our serum is making such a positive impact. It’s fantastic to see the results you've achieved, especially along your hairline.
Thank you for sharing your experience and for your support. If you have any more updates or need further assistance, we're here for you!
Best,
Team KYIR
Being a platinum blonde is hard enough, let alone living a very active lifestyle day to day as a yoga instructor. Kyir has changed the way my hair feels on hair wash day and has played a key role in the way my hair looks and feels on day four! Sweating is part of my every day life and practice but I never have found a serum that does NOT negatively contribute to my hair after my workouts. My platinum has never looked as healthy as it does now! 🖤
I’ve been using Kyir for the past month and it’s really made a huge difference! Starting to see new growth!
I have been using this for 90 days. My hairline is more full and I have small hairs growing in from the front! I love how it gives me volume as well. I do not need a styling product in addition!
I noticed some baby hairs coming out ! I’m going to continue use!
Absolutely must try hair serum!!!!!! Completely obsessed using the product AM and PM. Even my friends are asking about my hair volume and shine. Never knew I even needed the product but so glad I found it LOVE KYIR. I now have baby hairs at my hairline. You'll thank me later. I'm ordering my second bottle because I can't be without my routine.... Run don't walk on ordering yours....
For the past 10+ years I have been bleaching my hair and have always struggled with thin, damaged/brittle hair. I have bought and used just about every hair repair product in today's beauty market, spending thousands with no luck, until I got my hands on Kyir. Using Kyir's hair oil containing of plant based ingredients & Redsenyl has allowed my hair to finally GROW 2-4 inches between bleach sessions leaving it so softer, thicker, and healthier than ever before. My hair dresser was even impressed at the results!!! This is a must buy!!!
My hair has always gone through stages of thinning especially that I’m a guy. I’ve been using this 2 times a day. In the morning and at night and I have to say my hair & scalp health has had such an improvement. I’m super sensitive to so many things so it’s hard for me to trust and use a product. Hair feels and looks fuller, softer & my scalp is cleaner and I don’t feel irritated just amazed!
So lightweight and effective! I use this prior to my pomade and it adds so much volume without feeling heavy. Great scent too!
This serum revives my day-old or gym hair better than any dry shampoo on the market. Just two droppers all over the scalp, a quick blow dry with a round brush, and I’m ready to go (this technique gives awesome volume as seen in my photo). Smells great, has clean ingredients, does everything it promises it will do and more! It’s a permanent resident in my beauty routine from now on. Can’t wait to see how it enhances and encourages growth as time goes by.
I’ve now finished my first bottle and into the next one. Wanted to try this since pregnancy increased my hair loss and started seeing bald spots. I cannot report yet progress on the bald spots but definitely my hair loss is back to normal even in the midst of postpartum/breastfeeding which usually increases hair loss.
Also I’ve received comments that my hair looks very shiny and full overall.
Obsessed with this serum my hair is gradually getting denser I’ve noticed my shedding has decreased and hair feels much fuller! The smell is also addicting and i love that it doesn’t make my hair greasy! The ingredient list is actually impressive!
Really happy with this product! I’ve never purchased a hair serum before but love adding this to my daily routine.
Thank you so much! We love to hear this!
When I found Kyir I was struggling with extreme hair shedding. It felt like I had lost about 40-50% of my hair. I was desperate to find a solution that worked. I'm 6 weeks into using Kyir and I have noticed a difference in my shedding. It has definitely reduced back to normal shedding in the shower. No more big clumps! I have also started to see new little hairs starting to pop up at my widening part. I'm very happy with Kyir and would definitely recommend giving it a try. It is lightning in a bottle! I can't wait to see where my hair will be in another few months from now.
Hi Jana, we're so glad to hear about your positive experience with the Fuller Active Hair Serum! Thank you for sharing your journey — we're excited to see your progress over the coming months. If you need any support, we're here for you! We are cheering you on!
xox Team KYIR