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Side by side

Bondi Boost Smoothing Shampoo vs Nature's Gate Biotin & Bamboo Shampoo for Thin Hair

91% function match · 10 of the 13 functions we compared match Formula overlap 12%. Bondi Boost Smoothing Shampoo and Nature's Gate Biotin & Bamboo Shampoo for Thin Hair share 2 ingredients among each other's most prominent.

Based on your consultation

Which of these fits your hair?

We check your pattern, moisture need, scalp, fragrance tolerance, weight sensitivity and more against each formula — and say which one lines up.

Your profile at a glance

  • Your answers appear here
  • Your answers appear here
  • Your answers appear here
  • Your answers appear here

When each one is the right call

What each formula is built for, from its own ingredient list.

  • Smoothing Shampoo — colour-treated hair
  • Biotin & Bamboo Shampoo for Thin Hair — fragrance-free

Side by side

Every trait, aligned

One row per trait, read from each product’s own ingredient list and record. A dash means we have not researched that field for that product — it is not a “no”.

Trait
Bondi Boost Smoothing Shampoo — 16.9 oz container Bondi Boost

Smoothing Shampoo

  • Shampoo
  • Salon
  • Sulfate-free
  • Silicone-free
Nature's Gate

Biotin & Bamboo Shampoo for Thin Hair

  • Shampoo
  • Drugstore
  • Sulfate-free
  • Silicone-free
Price, size & price per ounce
$33–34 16.9 oz · $2.01/oz
$9.45 16 oz · $0.59/oz
Value / price positioning
Upper-mid price for a shampoo $$$$$ Salon tier · costs more than 62% of the 805 shampoos we’ve priced
Lower cost than most shampoos $$$$$ Drugstore tier · costs less than 85% of the 805 shampoos we’ve priced
Best for hair types
All types Nothing in the formula or the claims narrows this to one pattern. Your hair
All types Nothing in the formula or the claims narrows this to one pattern. Your hair
Moisture level Same
High Humectants near the top — water-binding is a headline mechanism here. Your hair
High Humectants near the top — water-binding is a headline mechanism here. Your hair
Cleansing strength Same
Moderate Removes oil and product; leaves some conditioning behind. Your hair
Moderate Removes oil and product; leaves some conditioning behind. Your hair
Slip / detangling Differs
Moderate Conditioning agents are present, lower in the list. Your hair
Some Some slip, mostly from esters or silicones rather than conditioners. Your hair
Weight on hair
Light Water-first and light: unlikely to flatten fine hair. Your hair
Medium Middle of the range — noticeable on fine hair, light on coarse hair. Your hair
Fragrance
Present Fragrance is listed; it sits below the working ingredients. Your hair
None listed No fragrance is listed. Your hair
Protein Differs
Minor Protein appears, low enough to be a supporting ingredient. Your hair
None No protein or amino acids in the list. Your hair
Silicone / wax buildup Same
High Water-insoluble silicones or waxes: a detergent wash is what removes them. Your hair
High Water-insoluble silicones or waxes: a detergent wash is what removes them. Your hair
Clarifying wash needed
Moderate Your hair
Moderate Your hair
Expected lather Same
Moderate An ordinary shampoo lather. Your hair
Moderate An ordinary shampoo lather. Your hair
Scalp active Same
None No over-the-counter scalp active. Your hair
None No over-the-counter scalp active. Your hair
Hard-water defence Same
None No chelating agent in the list. Your hair
None No chelating agent in the list. Your hair
Formula completeness
out of 10
Complete for its job
out of 10
Covers the core
Who should choose this
  • Colour-treated hairthat fades faster in a sulfate wash
  • Curly-method routinesno sulfates and no water-insoluble silicones
  • Fine hairthat flattens under most products
  • Silicone-free routinesno silicones appear in the list
  • Fragrance-freeno fragrance (parfum) on the label — scented
  • Colour-treated hairthat fades faster in a sulfate wash
  • Protein-sensitive hairthat stiffens when protein is added
  • Curly-method routinesno sulfates and no water-insoluble silicones
Why you might skip it
  • Scents bother youthis product carries a scent
  • Stretching wash dayswaxes stay until a detergent wash removes them
  • Dry or very humid airwhere heavy humectants work against you
  • Scents bother youthis product carries a scent
  • Stretching wash dayswaxes stay until a detergent wash removes them
  • Hair that needs proteinthere is none in this list
from the formula stated by the brand reported by reviewers Scale: 1 dot low · 5 dots high, within this product type.
More facts about each one
Type
Shampoo
Shampoo
Line
—
Biotin & Bamboo
Where to buy
Brand website
Vitacost
Free of
  • sulfate-free
  • silicone-free
  • curly-method compatible
  • sulfate-free
  • silicone-free
  • fragrance-free
  • protein-free
  • curly-method compatible
Vegan
Vegan · label states
—
Cruelty-free
Cruelty-free · label states
Cruelty-free · PETA-listed
Scent
Scented, not described
—
How often
as needed
—

Facts as we recorded them. A dash means we have not researched that field for that product — it is not a "no".

The bottom line

The bottom line depends on your hair

Which of these two suits you is a question about your hair, not about them. The consultation answers it — and tells you what your routine needs around it.

Take the consultation

$49.00 once, for your consultation and hair profile. No subscription, no required purchases.

The detail behind the table

Where the readings above come from: the ingredient lists themselves, each brand’s claims checked against them, what owners report, and cost per ounce in context.

Shared and distinct ingredients

Shared and distinct ingredients

Computed from the ingredient lists as printed. "Shared" means both lists carry it; where it sits on each label is stated, because position is what tells you how much.

What both formulas carry

IngredientSmoothing ShampooBiotin & Bamboo Shampoo for Thin Hair
Water
Neutral
#1Leading
#1Leading
Glycerin
Moisturizes
#5Supporting
#5Supporting
Panthenol
Detangles
#19Below the 1% line
#8Supporting

What only one of them carries

Smoothing Shampoo

Biotin & Bamboo Shampoo for Thin Hair

Full ingredient list — Smoothing Shampoo (48)
Full ingredient list — Biotin & Bamboo Shampoo for Thin Hair (40)

Claims check

What each brand says, against what each formula shows

Claims are quoted from each brand. We only mark one supported, partly supported, or conflicting when that product’s ingredient list actually speaks to it.

VerdictsSmoothing ShampooBiotin & Bamboo Shampoo for Thin Hair
Supported
3
0
Partly supported
0
1
Stated by brand
0
2
Potential conflict
0
0

Smoothing Shampoo

  • Naturally cleanses, fights frizz, protects against humiditySupportedSmoother strands, less frizz.
  • Creates sleek, soft, shiny strands with weightless moistureSupportedHelps hair feel hydrated.
  • Sulfate-free, silicone-free, paraben-freeSupportedGentler on colour and coils.

Biotin & Bamboo Shampoo for Thin Hair

  • Formulated Specifically for Thin, Damaged HairStated by brandCan’t be confirmed from label.
  • Featuring Biotin, Bamboo, and Pro-Vitamin B5Stated by brandNot something a label can show.
  • Helps to add volume to thinning hair with clean, natural ingredientsPartly supportedNeutral on lift.

What owners say

What people report

Recurring themes our researchers wrote in their own words from sourced reviews. We do not store or scrape star ratings, and we never balance one product’s themes against another’s by inventing them.

Bondi Boost Smoothing Shampoo draws complaints about weight and frizz; Nature's Gate Biotin & Bamboo Shampoo for Thin Hair draws complaints about how it cleanses.

Smoothing Shampoo

several reviewers say the shampoo leaves hair noticeably smoother and less frizzy right after use

reviewers explicitly naming the shampoo

a substantial number of reviewers report no real reduction in frizz despite regular use, some saying hair still looked knotted or dull

reviewers with thick, curly or highly frizz-prone hair

a few reviewers say the shampoo leaves hair feeling greasy or is difficult to rinse out fully, requiring more frequent washing

reviewers with fine or oily-prone hair

Biotin & Bamboo Shampoo for Thin Hair

A verified reviewer describes shiny hair after use.

iHerbCustomer, Moldova verified reviewer; Feb 2026

Users report light lather, clean scalp, soft lightweight hair, and some root volume.

AikoshaS, US verified and rewarded iHerb reviewer; Mar 2026

Users report refreshing gentle scalp cleansing without heaviness or dryness and would repurchase.

MissJum, Kuwait verified and rewarded iHerb reviewer; Jan 2026

One reviewer reports a slightly squeaky feel and says conditioner helps.

RURU, Japan verified iHerb reviewer; May 2026

Price check

Cost per ounce, in context

Cost per ounce against every product of this type we have priced, each at the size it is most often sold in. Value labels are computed from that percentile and from how many products that do the same job cost less; they are comparisons, not judgements about a brand.

$0.59/oz vs $2.01/oz — Bondi Boost Smoothing Shampoo costs about 3.4× more per ounce than Nature's Gate Biotin & Bamboo Shampoo for Thin Hair.

$0.00/oz median $1.47/oz $17.29/oz $2.01/oz Smoothing Shampoo $0.59/oz Biotin & Bamboo Shampoo fo

Every mark sits on one distribution because these are compared against the same set: 805 shampoos with a computable unit price.

Value readSmoothing ShampooBiotin & Bamboo Shampoo for Thin Hair
Label
Upper-mid price for a shampooSits in the middle of the range for shampoos per ounce.
Lower cost than most shampoosCosts less per ounce than most shampoos we have researched.

Computed from cost per ounce against every product of this type we have priced, and from how many products that do the same job cost less. It is a comparison, not a judgement about the brand.

Compare with something else

Close formulas to each of these, as their own comparison pages.

Smoothing Shampoo vs Lavender & Biotin Full Volume ShampooAndalou Naturals · 98% function matchBiotin & Bamboo Shampoo for Thin Hair vs Lavender & Biotin Full Volume ShampooAndalou Naturals · 93% function matchSmoothing Shampoo vs Argan Stem Cell Age Defying ShampooAndalou Naturals · 98% function matchBiotin & Bamboo Shampoo for Thin Hair vs Argan Stem Cell Age Defying ShampooAndalou Naturals · 93% function matchSmoothing Shampoo vs Argan Oil & Shea Moisture Rich ShampooAndalou Naturals · 94% function matchBiotin & Bamboo Shampoo for Thin Hair vs Baby Shampoo + Body Wash, NourishHonest · 89% function matchSmoothing Shampoo vs Sunflower & Citrus Brilliant Shine ShampooAndalou Naturals · 94% function matchBiotin & Bamboo Shampoo for Thin Hair vs Aveda Smooth Infusion Anti-Frizz ShampooAveda · 89% function match

Smoothing Shampoo · Biotin & Bamboo Shampoo for Thin Hair · All shampoos in the library

How this page was made

  • This page is assembled from the same researched records the individual product pages render: identity, each ingredient list as printed, each brand's own claims, dated price observations, and review themes written in our researchers' own words. Nothing on it is written per comparison.
  • We do not rank these against each other. Which of them suits you depends on your hair, and that is what the consultation works out.
  • The formula similarity percentage is a stored, precomputed number: position-weighted overlap of the two ingredient lists blended with agreement on the attributes we derive. It measures how alike two formulas are, not how well either works.
  • The value band is a fixed label over two stored numbers: this product’s cost per ounce as a percentile of every product of this type we have priced, each at the size it is most often sold in, and how many products we score as doing the same job cost at least a quarter less per ounce.
  • The "Is this right for you?" panel reads only your own consultation answers, and it applies exactly the filters our recommendation engine applies. It is computed when you load the page and is never stored on it.
  • 9 sources were consulted across the products on this page.
  • Ingredient order tells you relative amount only above roughly 1%. Prices are observations on the dates shown and change without notice. We do not sell these products and take no placement fees.
  • This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.

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