Growth + Retention★★★★★ 2,847 Reviews

The Length Code

Two shampoos. One method for longer hair.

€51,95 EUR
Details

Maintain Shampoo Concentrate

For regular wash days.

A low-lather pH-balanced concentrate formula that cleans without stripping. Removes daily dirt, oil and sweat while preserving your hair's natural moisture barrier.

No sulfates. No silicones. No damage- and-repair cycle.

Size: 100ml (3.4 fl oz) — 30–50 washes

Reset Shampoo Concentrate

For your deep clean days

A targeted clarifying concentrate formula that removes product buildup, hard water residue, sebum buildup.

One to two washes per month unclogs, resets, and lets your scalp breathe.

Size: 50ml (1.7 fl oz) — 30–50 washes

Shampoo Bloom Bottle

A high-performance addition to your shampooing routine. Shampoo your hair in less than 60 seconds. No rubbing and no tangles. You'll see less hair fall every time you shower and start looking forward to washing your hair instead of dreading it.
How to Use

Use Maintain as your go-to shampoo. Daily or 2–3 times a week as needed. Use Reset after using styling products or when your hair feels heavy and untamed and needs a refresh. Alternating between the two shampoos is all you need in your haircare routine.

For both shampoos

1. Add a pea size of shampoo in your bloom bottle.

2. Fill with water, close and swirl gently to activate the shampoo.

3. Apply solution to dry hair. Start at your roots and allow the water to flow down the strands.

4. Rinse. No rubbing or scrubbing needed. Skip conditioner — you won't need it.
Ingredients

Maintain Shampoo

Propanediol, Hydroxypropyl Starch Phosphate, Decyl Glucoside, Disodium Succinate, Caprylohydroxamic Acid, Glyceryl Caprylate/Sebacic Acid Copolymer, Sorbitan Laurate.

Reset Shampoo

Propanediol, Hydroxypropyl Starch Phosphate, Decyl Glucoside, Sorbitan Laurate, Caprylohydroxamic Acid, Glyceryl Caprylate, Glycerin.
Shipping & Returns

Free shipping on all orders.

90-day money-back guarantee — not seeing results? Full refund, no questions asked.

Ships within 1–2 business days.
KEY BENEFITS
Silicone-Free pH Balanced Color-Safe Cruelty-Free Vegan No Parabens
  • Silicone-Free
  • 2,000+ Journeys
  • Vegan
  • No Parabens
  • Cruelty-Free
  • 90-Day Returns
  • Silicone-Free
  • 2,000+ Journeys
  • Vegan
  • No Parabens
  • Cruelty-Free
  • 90-Day Returns

Why Your Hair Won't Grow Past Your Shoulders

(It's not your genetics. It's your products.)

Silicone Buildup

Regular conditioners coat your hair in silicones that accumulate over time.

Sulfate Stripping

To remove that buildup, you need sulfates. But sulfates damage the hair you're trying to grow.

The Breakage Cycle

Your hair grows 6" per year. You break off 6" at the ends. Net growth: zero.

THE TRAP
Silicone Buildup Harsh Sulfates Damage No Length

Unleash Your Length

The hair you've always wanted is already growing. You just have to keep it.

Start the 2 Shampoo Routine

Length Journeys

Real women. Real growth. Real hair.

4 months

Shoulder → Waist

Naiara S.

"I was stuck at shoulder length for years. Now look at me."

6 months

Frizz → Defined

Pauline B.

"My curls are finally healthy AND long. No more breakage."

3 months

+3" in 3 Months

Lisa K.

"The difference after just 3 months is insane."

Why traditional shampoos are holding you back

Watch Sarah break down a traditional "sulfate-free" shampoo that's not as gentle as it promises.

Start the 2 Shampoo Routine

The merely Method

Two products. One system. Finally, length.

merely method twistcap step1 maintain
Step 1

Gentle Maintenance

Sulfate-Free

Gentle protective formula for your regular washes. No sulfates, no harsh chemical = no stripping = length retained.

merely method twistcap step2 reset
Step 2

Clarifying Reset

Key to Growth

The only way to truly remove all buildup, pollution, toxins and silicone is with sulfates. Once or twice a month when your hair needs a fresh start = maximum clean, minimum damage.

Get my 2 Shampoo Routine

"I didn't need better genetics. I just needed to stop breaking my hair."

A washing routine to free your hair from the breakage system.

The haircare industry sells you shampoo that damages your hair, then sells you conditioner to fix it. That cycle is the entire business model. It keeps you buying. It keeps your hair stuck.

After six years teaching 250,000+ women the science of hair growth, I found the same thing over and over: no one needed more products. Breaking the cycle always came down to two shampoos — a gentle one to protect, and a clarifying one to reset.

So I created the merely 2-Shampoo System. Your longest, healthiest hair only requires two bottles.

– Sarah, Founder

Real Results

From a 12-week study of 847 women with length plateaus

87%

Noticed less breakage in first month

3.2"

Average length gained in 12 weeks

94%

Would recommend to a friend

*Independent study, 2025. Results may vary.

Why merely Works

(When other products haven't)

Feature merely System Regular ShampooGrowth Serums
Prevents Breakage Yes Partial
Removes Buildup Safely Yes
Strategic Sulfates Yes N/A
Complete System Yes
Addresses Root Cause Yes Partial
What Our Customers Say
What Our Customers Say

★★★★★

Finally past my shoulders!

"I've been stuck at shoulder length for YEARS. Tried everything – biotin, growth serums, expensive salon treatments. 4 months with merely and I'm officially at bra strap length. The two-shampoo thing seemed weird at first but now it makes so much sense."

AMANDA R. · Using merely for 4 months
What Our Customers Say

★★★★★

Ditched my extensions

"I was spending $3k every few months on extensions. My stylist actually recommended trying this instead. 6 months later, my natural hair is longer than my extensions ever were. I literally cannot believe it. Best investment ever."

TAYLOR M. · Using merely for 6 months
What Our Customers Say

★★★★★

My hair finally grows!

"I thought my genetics just meant short hair. Turns out I was just breaking it off as fast as it grew. 3 months in and I can finally put my hair in a real ponytail."

JESSICA L. · Using merely for 3 months

Frequently Asked Questions

How is this different from other shampoos?

Most shampoos force you to choose: gentle (sulfate-free) that leaves buildup, or strong (sulfates) that strips and damages. We engineered two concentrates that work together—Gentle Maintenance for everyday protection plus Clarifying Reset once a week—so you get clean AND protected hair without compromise.

When will I see results?

Most customers notice softer, less tangled hair within the first wash. Visible length retention typically shows within 4-8 weeks as your hair stops breaking at its usual rate. Full results (noticeable length gain) usually appear around 3 months.

What if it doesn't work for me?

We offer a 90-day money-back guarantee. If you don't see results, we'll refund you in full—no questions asked. We believe in this system because we've seen it work for thousands of women.

Do I need conditioner with this system?

That's the beauty of the two-shampoo method—when you're not damaging your hair in the first place, you need less repair. Many customers find they can skip conditioner entirely or use much less. Your hair maintains its natural moisture and strength.

Is this safe for color-treated hair?

Yes! Gentle Maintenance is sulfate-free and won't strip color. Clarifying Reset is used only once a week, which is gentle enough for most color treatments. Many of our customers have color-treated hair and report their color lasting longer.

Ready to Finally Grow?

Join 250,000+ women on their length journey.

Shop the System
  • 90-Day Guarantee
  • Free Shipping
  • Cancel Anytime