A Clean, Gentle Relaxer Substitute for the 21st Century

We developed a safe and scientific smoothing treatment that simplifies textured hair care. Spend less time on maintenance and more time on what truly matters.

Pre-Order Today!

Reduces Curl 50% to 90%

No Formaldehyde

No Burns

Based on Naturally Occurring Amino Acids

Patent Pending

Reduces Curl 50% to 90% No Formaldehyde No Burns Based on Naturally Occurring Amino Acids Patent Pending

Define and Stretch Curls Without Formaldehyde or Chemicals that Cause Burns.

Our Curl Stretching Cream smoothing treatment gently stretches out 4A-4C curls for quicker haircare. Stretched curls last up to a month, giving you less breakage, less knotting and faster dry time while keeping bounce and volume.

Will Samuel's Science Work for You?

Customer Reviews

"The curl stretching spray was easy to use - just follow the directions and adjust the flat iron temperature for your hair. The spray had a pleasant smell as well. When I applied the product the first time, I only applied once during the 30 day time frame; I was able to maintain a straight hair style for about 21 days. Then, I tried using it every time I wash my hair; this seemed to work the best for my hair as it greatly reduced frizzing in the humidity and kept my hair straighter longer. I should have bought the creme on the website when I received the product - kicking myself for it now. I am thoroughly impressed with this product and hope it gets back in stock soon. Thank you for making a relaxer free alternative that actually works!

—Natalie S.
"I’m pleased with my results. Compared to relaxers this is much easier to apply and less toxic. I like that it doesn’t dry my hair out or make my hair feel stiff. It maintained the moisture and stretched the curls a bit. I can see the benefits after one use and look forward to the progress in months to come.

— Lisa
"I used the curl stretching spray and have had an easier time managing my hair. I could only get my flat iron to heat up to 410° because it is old, yet I liked the overall result once I shampooed after flat ironing. Also, one bottle was plenty for my first application; I probably have a third of the bottle left. One downside, however, was that my hair had a strong unpleasant burned/sulphur scent that took a couple of weeks to fade. When wet, my hair had a bad smell. Once dry, the odor was barely noticeable. Another downside was how long it took the complete the entire process. I have extra thick 4a coils, and it is not ideal to have to spend so much time applying monthly. Overall, though, the curl stretching cream is a very solid product that I will continue to use.

—Tamara

Quick View

Curl Stretching Spray - 100mL

$35.00

Pre-order by August 31st for shipping by October 31st

The Samuel’s Science Curl Stretching Cream is designed to reduce curl for 4A-4C hair by 50%-90% by using a naturally occurring amino acid. Sulfur (think of a hot spring) is the key ingredient that allows for reshaping of the hair by re-forming the core bond in your strands that creates hair shape.

100mL is enough for one treatment. We recommend monthly use for best results.

Our Product Promise:

+ Meets European Union Safety Standards

+ FDA Compliant

+Reduces Curl for up to 1 Month

+No Burns or Additional Breakage

+ Based on a Naturally Occurring Amino Acid

+ Developed by a Stanford Engineer and Europe-focused Chemist

+Fragrance Free

FAQ

Samuel’s Science is a clean and innovative hair smoothing treatment designed specifically for Black hair. It provides smoother, more manageable hair without harsh chemicals or formaldehyde.
Samuel’s Science uses naturally occurring amino acids to temporarily smooth and stretch curls while maintaining hair health. The treatment reduces frizz, improves detangling, and simplifies styling for up to one month.
No, Samuel’s Science is not a relaxer. Unlike traditional relaxers that permanently straighten hair by breaking disulfide bonds, our formula smooths hair without high-pH chemicals or long-term damage, allowing your curls to bounce back naturally.
Yes! Samuel’s Science is designed for easy at-home application. The product includes clear instructions, and our formula minimizes risks like burns or scalp irritation commonly associated with other treatments.
The smoothing effect typically lasts for up to one month, depending on your hair type and aftercare routine. You can reapply as needed to maintain results.
Yes, Samuel’s Science is safe for chemically and color-treated hair. Our formula helps condition and smooth hair without causing further damage.
Absolutely! Samuel’s Science is perfect for active lifestyles. It reduces frizz and makes hair easier to manage even after swimming or sweating. description
Keratin treatments often use formaldehyde or formaldehyde-releasing agents to straighten hair, which can pose health risks. Samuel’s Science is formaldehyde-free and smooths hair without compromising health.

Easy to Manage Hair in 3 Simple Steps

Step 1: Wash and Apply Cream

Wash and your hair without using conditioner, then apply our Curl Stretching Serum and leave on for 1 hour.

Step 2: Blow Dry and Straighten Hair

Blow dry hair straight, and then flat iron at 220 degrees C. Do not rinse out serum and leave in hair overnight (or for 8 hours)

Step 3: Wash and Wear

Wash hair again with your favorite shampoo and see the results! Your newly stretched curls will be wash-and-go ready for up to a month.

Patent-Pending Technology Inspired by Nature and Designed for 4A-4C Curls.

After one treatment, Michelle’s hair holds a twist-out with more definition. Her grey and dyed hair more easily takes shape.

Did you know that African-Origin hair is generally flatter than other types of hair? This means that knots stay put and are harder to loosen than for Asian or Caucasian-Origin Hair.

Rethinking Black Hair

Learn the ins and outs of African-origin hair on our blog.