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The complete routine

How To Use Copper Peptides

Apply, absorb, done. About 30 seconds a day.

4.5/5+ from verified customers
The face routine

30 seconds. Morning, night, or both.

Cleanse. Apply 2-3 drops to face and neck. Let it absorb for 60 seconds, then layer the rest of your routine.

The hair routine

Part. Apply. Leave in.

Works on dry or damp hair. Dispense directly onto the scalp, massage in with your fingertips, and do not rinse. Same steps for the GHK-Cu and AHK-Cu Hair Tonics.

PLU Face Tonic bottle on a mirror

Face Tonic, step by step

  1. Wash your face and pat it dry.
  2. Apply 2-3 drops to your face and neck with your fingertips.
  3. Let it absorb for 60 seconds before anything else. No residue, no greasiness.
  4. Layer the rest of your routine: moisturizer, sunscreen, anything you already use. Using retinol? Wait 15-20 minutes, or use it on alternate nights.

Shop Face Tonic

PLU Hair Tonic bottle on leaves

Hair Tonics, step by step

  1. Part dry or damp hair into sections to expose the scalp.
  2. Dispense directly onto the scalp and massage in with your fingertips.
  3. Leave in. Do not rinse. Wait 60 seconds before other hair products, then style as usual.

Same steps for the GHK-Cu Hair Tonic and the AHK-Cu Hair Tonic.

Where It Fits in Your Routine

Our peptides fit alongside the rest of your routine. One rule keeps everything working:

Tonic first, on clean skin or scalp • Absorb 60 seconds • Then everything else

Example Routines

Morning Routine +

Face wash → Face Tonic → Sunscreen

Optional: add hyaluronic acid between Face Tonic and sunscreen. Using vitamin C? Use it at a different time of day, or apply it first and wait 20-30 minutes before Face Tonic.

Night Routine +

Face wash → Face Tonic → Moisturizer

Optional: add retinol serum or other products

Using both tonics? Face Tonic and Hair Tonic together take under 60 seconds a day.

Want the deep dives? Read our guides on what not to mix with copper peptides, pairing them with vitamin C, retinol, or tretinoin, and how AHK-Cu compares to minoxidil.

Expected Progress

What to Expect

1-2

Weeks 1-2

Skin feels smoother with improved texture and comfort

3-4

Weeks 3-4

Visible improvements in skin tone evenness and firmer appearance

6-8

Weeks 6-8

Notable reduction in fine lines with improved elasticity

8-12

Weeks 8-12

Skin texture continues improving, fine lines less prominent

12+

Weeks 12+

Ongoing support for firmer, smoother skin with daily use

1-2

Weeks 1-2

Scalp feels healthier with improved comfort

3-4

Weeks 3-4

Hair appears smoother with improved shine

6-8

Weeks 6-8

Visible improvements in hair density and scalp health

8-12

Weeks 8-12

Hair appears noticeably thicker and fuller

12+

Weeks 12+

Ongoing support for fuller, denser hair with daily use

Individual results may vary. Research on copper peptides, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, and Acetyl Tetrapeptide-3 noted visible improvements within study timeframes with consistent use of peptide complexes.

Good to Know

Morning or night? +

Either works, and both is fine. Consistency matters more than timing.

Can I put moisturizer over it? +

Yes, and you should if moisturizer is part of your routine. Tonic first, 60 seconds to absorb, then moisturizer or anything else.

Do I rinse out the Hair Tonic? +

No. It is a leave-in. Apply, massage it in, style as usual.

What about sensitive skin? +

Our formulas contain no parabens, sulfates, silicones, or artificial fragrances. As with any new product, patch test a small area first, and check with a dermatologist if you have a known skin condition.

How long does a bottle stay good? +

Use within 6 months of opening. Unopened, a bottle keeps for 2 years. For external use only. Avoid contact with eyes and discontinue if irritation occurs.

Put it into practice

Pick your tonic

Three focused formulas. Six ingredients or less, every time.

Best Seller

GHK-Cu Hair Tonic

Best forFuller-looking hair and scalp health
Concentration1% GHK-Cu1% Acetyl Tetrapeptide-3
Lab-verified atUniversity of Illinois at Chicago
RoutineUnder 30 seconds, once a day, leave in

Full size, $79.99 $67.99 with subscription

Shop Hair Tonic
Two black bottles with droppers on a reflective surface with stones and plants in the background.

GHK-Cu Face Tonic

Best forFine lines and skin firmness appearance
Concentration1% GHK-Cuplus complementary palmitoyl peptides
Lab-verified atUniversity of Illinois at Chicago
RoutineUnder 30 seconds, morning and/or night

Full size, $79.99 $67.99 with subscription

Shop Face Tonic
New

AHK-Cu Hair Tonic

Best forTargeted support for hair density appearance
Concentration1% AHK-Cu1% Acetyl Tetrapeptide-3
Lab-verified atUniversity of Illinois at Chicago
RoutineUnder 30 seconds, once a day, leave in

Full size, $119.99 $101.99 with subscription

Shop AHK-Cu

Questions about your routine? productteam@plulaboratories.com