Redensify Treatment Serum
Clinically shown to increase hair density and volume in 3 months, thickness in 6.* This fast-absorbing scalp serum with 3% Redensyl and 1% Kopexil nourishes the scalp, helps reduce shedding, and soothes without greasiness or disrupting your hair style.
When used twice daily as directed, one serum tube typically lasts about 4 weeks for full-scalp application. If you're treating smaller, more targeted areas of thinning, your tube may last longer, up to 6 weeks.
Dermatologist tip: Visible improvements in hair density typically require at least 90 days of consistent use. Most users finish about 2-3 serum tubes during that time.
- Supports visibly thicker, stronger hair
- Helps reduce hair shedding
- Strengthens the scalp’s natural barrier
- Instantly hydrates the scalp without leaving residue
- Delivers serum precisely and hygienically with a needle-nose tip
Redensyl 3% - Supports hair density and helps maintain a healthy growth cycle
Kopexil 1% - Supports the appearance of fuller-looking hair and helps maintain a healthy follicle environment
TrichoCore Complex™ - Proprietary multi-pathway blend that helps to nourish and fortify hair, from root to tip made up of: Caffeine, Zinc, Adenosine, and Pumpkin Seed Oil
Adapinoid - 3rd generation gentle retinoid that helps revitalize scalp skin
Panthenol + Ectoin - Hydrate and soothe to support a healthy scalp barrier
Full Ingredient List: Water/Aqua/Eau, Glycerin, Propanediol, 1,2-Hexanediol, Panthenol, Diaminopyrimidine Oxide, Cucurbita Pepo (Pumpkin) Seed Oil, Larix Europaea Wood Extract, Camellia Sinensis Leaf Extract, Serenoa Serrulata Fruit Extract, Ectoin, Lecithin, Adenosine, Caffeine, Glycine, Zinc PCA, Octyldodecanol, Ethylhexylglycerin, Zinc Chloride, Sodium Phytate, C9-12 Alkane, Sodium Acrylates Copolymer, Caprylyl/Capryl Glucoside, Sorbitan Oleate, Oleyl Adapalenate, Polyisobutene, Sodium Metabisulfite, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
In a clinical study* of 32 participants with hair thinning confirmed by a board-certified dermatologist:
100% of participants showed improvement in hair density and volume
97% of participants showed improvement in hair thickness
*Based on a 24-week clinical study with 32 participants, dermatologist-evaluated. Results may vary.
Results after 3 months (12 weeks):
100% are satisfied with their results*
97% agree overall hair volume looks improved*
91% noticed an improvement in the appearance of thinning*
91% say hair looks denser in areas of application*
Results after 6 months (24 weeks):
100% report more confidence in their hair’s appearance*
100% would recommend this serum to someone experiencing thinning or shedding*
100% report less breakage*
97% agree areas of previous thinning appear fuller*
*Based on an independent, third-party consumer perception study with 32 participants, measured at 12 and 24 weeks. Responses are self-reported. Individual results may vary.
- Section hair into five parts and apply the serum to dry or damp scalp.
- Massage gently with fingertips to distribute evenly; do not rinse out.
- Non-greasy, fast-absorbing formula sinks in quickly, letting you add it to your routine in seconds.
- Use twice daily for optimal results.
DERMATOLOGIST-FORMULATED
CLINICALLY PROVEN
COLOR SAFE
FRAGRANCE-FREE
VEGAN
Clinically shown to increase hair density, volume, and thickness.*
In an independent clinical study, the Redensify Treatment Serum increased hair density and volume in just 3 months, with added thickness by 6 months.*
*Based on a 24-week clinical study with 32 participants, dermatologist-evaluated. Results may vary.
Baseline
After 24 Weeks
Results after 3 months*
100% are satisfied with their results
97% agree overall hair volume looks improved
91% noticed an improvement in the appearance of thinning
91% say hair looks denser in areas of application
*Based on a 12-week independent consumer perception study with 32 participants. Self-reported. Individual results may vary.
Baseline
After 12 Weeks
Results after 6 months*
100% report more confidence in their hair’s appearance
100% report less breakage
97% agree areas of previous thinning appear fuller
97% report fewer hairs falling out in the shower or when styling
*Based on a 24-week independent consumer perception study with 32 participants. Self-reported. Individual results may vary.
Baseline
After 24 Weeks
How To Use
01
Section Hair
Using a comb or your fingers, section hair into 5 parts to treat the entire scalp, or part only where thinning is visible, like the hairline, part, or crown.
02
Apply & Massage
Gently squeeze to dispense — a little goes a long way. Apply directly to the scalp and massage in. Take a moment for a quick scalp massage; this helps stimulate scalp circulation, supporting optimal conditions for hair growth.
03
Use Twice Daily
For best results, apply morning and night as part of your daily routine.The lightweight, fast-absorbing serum hydrates without leaving residue — so it never feels greasy, sticky, or ruins your blowout.
3% Redensyl
Supports hair density and helps maintain a healthy growth cycle.
1% Kopexil
Supports the appearance of fuller-looking hair and helps maintain a healthy follicle environment.
TrichoCore Complex™
Our proprietary multi-pathway blend featuring Caffeine, Zinc PCA, Adenosine, and Pumpkin Seed Oil to nourish and fortify hair.
Adapinoid
Helps promote healthy skin cell turnover.
Panthenol
Hydrates, soothes, and strengthens the scalp barrier while improving hair elasticity.
Ectoin
Shields the scalp from environmental stress and irritation while supporting barrier health.
What To Expect
Refresh (Weeks 0–6)
- Temporary shedding is normal as follicles refresh
- More balanced scalp with less oil and flaking
Revitalize (Weeks 6–12)
- Hair appears fuller and denser
- Less visible thinning
Reinforce (Weeks 12–24+)
- Hair volume and density continue visibly improving
- Strands look thicker and feel stronger
Frequently Asked Questions
It’s all about consistency. Visible improvements in hair density typically require at least 90 days of consistent use. In the first few weeks, your scalp begins to rebalance, and some may notice a brief increase in shedding as follicles shift into a healthier cycle. Around three months, hair starts to look fuller, with less noticeable thinning. With continued use beyond three months, volume and density continue to improve as stronger strands grow in.
Our Redensify Reset Shampoo is formulated to be gentle and does not contain ingredients commonly avoided during pregnancy or breastfeeding. However, we always recommend checking with your healthcare provider before starting any new personal care product. Our Redensify Treatment Serum contains ingredients such as a retinoid and saw palmetto, so it should not be used during pregnancy or while breastfeeding.
We are happy to report the answer is no! Kerativ formulas were specifically designed for fine and thinning hair, where heavy products can easily weigh hair down. The lightweight textures absorb quickly and provide hydration without leaving a greasy or oily residue on the scalp or hair.
Applying to a clean scalp is ideal, as it allows the formula to reach the scalp more easily without being blocked by excess oil or buildup. However, consistency matters most. The Redensify Treatment Serum was designed to fit easily into your routine, so it can also be applied between washes to desired areas, even if you use styling products or wash your hair less frequently.
With typical daily use, one tube usually lasts about 6 weeks. The formula is designed to be applied directly to thinning areas, so a small amount goes a long way.
Reviews
- SHShaun H.ReviewingRedensify Treatment SerumI recommend this productRated 5 out of 5 stars3 weeks agoGreat results
The center of the back of my head, around the crown where the hair spirals, used to be bald. Now I can actually see some hair growing back. The serum is very easy to use and doesn’t leave my scalp oily. I’m very happy with the results and highly recommend!
- CMChelsey M.Verified BuyerReviewingRedensify Treatment SerumI recommend this productRated 5 out of 5 stars2 months agoLeaves no trace
Convenient to use, doesn't leave a sticky residue or stiff feeling hair. No strong scent, no itching after application. My alopecia spots are filling in after 5 weeks already.
- TCTracy c.Verified BuyerReviewingRedensify Treatment SerumI recommend this productRated 4 out of 5 stars2 months agoMore density
I’m on my second bottle and I’ve seen my part get fuller over a months time of regular use. I use every evening before bed and split my hair in 5 sections and go front to back with a small line of product. So far I’m impressed with the results!
- KEKellea E.Verified BuyerReviewingRedensify Treatment SerumI do not recommend this productRated 2 out of 5 stars1 week agoDidn’t work for me
This could be a great product for others, but it didn’t work for me. I bought two so I could give it a fair chance, but I didn’t see any new growth. There may have been slightly less shedding, but not enough of a difference to continue using the product.
KKerativ4 days agoHi Kellea,
Thank you so much for taking the time to share your feedback with us. We greatly appreciate you taking the time to give the Redensify Treatment Serum a thoughtful trial and, most importantly, for sharing your honest experience with us.
Hair growth is a gradual process, and visible improvements in hair density typically require at least 90 days of consistent use. We recognize that every hair journey is unique, and individual results can vary. We’re sorry to hear that the serum didn’t meet your expectations, and we truly appreciate the time and commitment you put into experiencing Kerativ.
We really do appreciate you giving us a chance, and we wish you all the best with your hair care journey!
- CCCindy C.Verified ReviewerReviewingRedensify Treatment SerumI recommend this productRated 5 out of 5 stars3 weeks agoKERATIV shampoo and serums
After used the shampoo my hair fell soft and comfortable and I love the design of the products.
I used serum on my sensitive scalp and massaged every time after washing my hair. I didn't expect that the old spots on my head would become much better. Amazing!