Amplified Glow Copper Peptide Strengthening Shampoo – Berry Review
The berry shampoo makes the strongest free-from claim set in the Amplified Glow catalogue — sulfate free, paraben free, dye free, silicone free and cruelty free, all stated outright. On the two attributes where the brand publishes numbers it comes off worse than its lavender sibling: a lower disclosed peptide concentration (0.1% versus 0.15%) at a higher price ($32.00 versus $28.00). If the scent is what you want, the claim set is good; if you are choosing on published specification, the lavender version is better specified for less.
Who it fits
Best fit for
- People who prefer a berry scent.
- Shoppers who want an unqualified sulfate-free claim rather than a surfactant-system description.
- Anyone who wants silicone-free and dye-free stated explicitly.
Consider another option if
- You are choosing on disclosed peptide concentration — the lavender version publishes 0.15% for $4.00 less.
- You want keratin, niacinamide or creatine disclosed in your shampoo.
- You prefer a lavender scent.
What this product is
The Amplified Glow™ Copper Peptide Strengthening Shampoo – Berry is a 473 mL rinse-off shampoo. Amplified Glow discloses 0.1% GHK-Cu alongside sodium hyaluronate, sea kelp extract and rosemary extract.
It is sold standalone and as half of The Glow Hair Stack berry duo.
Formula and ingredient context
Four ingredients are disclosed by name for this product, which is the shortest disclosed set of any Amplified Glow haircare item. The lavender shampoo discloses seven.
Where this product does better is claim clarity. Amplified Glow states "Sulfate Free", "Paraben Free", "Dye Free", "Silicone Free" and "Cruelty Free" for the berry line. Those are unqualified formula-level statements. The lavender line, by contrast, claims "Sulfate-Free Surfactants" — a narrower statement about one ingredient class.
We record all of these as brand disclosures. None of them is accompanied by certification documentation we have seen, and the cruelty-free claim in particular is one we would want third-party certification for before describing it as verified.
Routine fit
Amplified Glow directs users to apply to wet hair, massage into the scalp and hair until a rich lather forms, rinse thoroughly, and follow with the matching conditioner.
The berry conditioner discloses the same 0.1% GHK-Cu. Buying both together as The Glow Hair Stack saves $6.00 against the two sale prices — the arithmetic is on our individual versus bundle comparison.
Price and value context
Listed at $32.00, reduced from $37.00. At 473 mL that is $6.77 per 100 mL at the sale price.
The lavender shampoo is $28.00 for the same stated volume, or $5.92 per 100 mL — about 13% less per millilitre, with a higher disclosed peptide concentration. There is no published explanation for why the less-specified product costs more.
Strengths and limitations
Strengths
- The clearest free-from claim set in the Amplified Glow catalogue, stated without qualification.
- Publishes a copper peptide concentration at 0.1%.
- Clear directions and a stated conditioner pairing.
- Available as part of a bundle that reduces the combined price.
Limitations
- Discloses a lower peptide concentration than the lavender version while costing more.
- The shortest disclosed ingredient set of any Amplified Glow haircare product.
- The full ingredient list is not published as text.
- No patch-test guidance on this page.
- Fragrance composition is not disclosed.
What we could not establish
Amplified Glow does not publish these, and we have not confirmed them. We record them as open questions rather than guessing.
- Full INCI list, in particular the sulfate-free surfactant system.
- Which fragrance ingredients create the berry scent, and whether any are declarable allergens.
- Whether the cruelty-free claim is backed by third-party certification.
- Why the berry line costs more than the lavender line despite disclosing less.
Safety and patch-test information
Amplified Glow publishes: for external use only, avoid contact with eyes, and discontinue use if irritation occurs. No patch-test recommendation appears on this page.
Customer feedback
No customer reviews yet
We publish genuine, moderated customer reviews only. None have been published for this product yet — we do not display invented ratings.
Be the first to review it →Frequently asked questions
How much GHK-Cu does the berry shampoo contain?
Amplified Glow states 0.1%. The lavender shampoo states 0.15%.
Which Amplified Glow shampoo is better value?
On published specification, the lavender version: it costs $4.00 less for the same stated volume and discloses a higher peptide concentration. The berry version has the clearer free-from claim set. Scent preference is the other input, and only you can weigh that.
Is it really sulfate free?
Amplified Glow states that it is. We record that as a brand disclosure. The formula's actual surfactants are not published, so we cannot independently confirm it.
Evidence notes
Size, price, the 0.1% GHK-Cu disclosure, free-from claims, disclosed ingredients and directions come from the Amplified Glow berry shampoo product page and shop listing, checked on the date shown at the top of this page.
Sources and evidence
Current catalogue membership, listed price, sale status and stock state.
Checked 2026-07-24 · brand shop listing
Name, 473 mL size, price, 0.1% GHK-Cu disclosure, scent, free-from claims and directions.
Checked 2026-07-24 · brand product page
Amplified Glow Editorial Team
Product research and editorial standards
This team works for Amplified Glow, the company that makes and sells the products reviewed here. Editorial pay isn’t tied to sales, review sentiment, or customer ratings — so when a product is thinly documented or has a drawback, the review says so.
Spotted something wrong? Request a correction.
Related comparisons
Berry vs Lavender Amplified Glow Haircare
More than the scent. The lavender line discloses 0.15% GHK-Cu against the berry line's 0.1%, names more supporting ingredients, and costs less — $28.00 per bottle against $32.00. The berry line makes the clearer free-from claims, stating "Sulfate Free" outright where the lavender line states "Sulfate-Free Surfactants". If you have no scent preference, the lavender line is better specified for less money.
Compare attributes →Product comparisonIndividual Products vs a Haircare Bundle
At current sale prices, the bundle. The berry duo saves $6.00 against $64.00 for the pair, and the lavender duo saves $4.00 against $56.00. At regular prices the berry bundle saves nothing — its $74.00 regular price is exactly the sum of the two components. The saving comes from the bundle's deeper promotional discount, not from bundling itself, so the arithmetic needs redoing whenever prices change.
Compare attributes →Related ingredients
GHK-Cu
GHK-Cu is a small peptide complexed with copper. In cosmetics it appears under the INCI name Copper Tripeptide-1 and is used as a conditioning ingredient. It is the ingredient every Amplified Glow copper peptide product is built around, and the only one for which the brand publishes concentrations — between 0.1% and 0.15% depending on the product.
Read the ingredient page →Polysaccharide salt; humectantSodium hyaluronate
Sodium hyaluronate is the sodium salt of hyaluronic acid, used in cosmetics as a humectant — an ingredient that attracts and holds water. It is the most widely used ingredient in the Amplified Glow range, disclosed in eleven of the fifteen products.
Read the ingredient page →Related guides
Shampoo and conditioner order
Shampoo first, conditioner second. Shampoo cleanses the scalp and lifts buildup; conditioner is applied to mid-lengths and ends afterwards and left for a couple of minutes before rinsing. The order matters because the two products do opposite things — cleansing removes, conditioning deposits — and doing them the other way round removes what you just deposited.
Read the guide →GuideWhat “not disclosed” means in a product comparison
Not disclosed means the brand does not publish it. Not verified means a value may exist but we have not confirmed it. Brand disclosed means the brand states it and we are reporting that accurately without independently confirming it. None of these means zero, and none of them is filled with an estimate — a table with honest blanks is more useful than one with invented numbers.
Read the guide →