Protocol 3 - Peptide Regeneration Serum
- Unit price
- /per
A copper peptide serum formulated with Copper Tripeptide-1 to support scalp repair. The advanced optimisation layer of The Protocol. Built for the long term.
Lasts approximately 30 days / 4 weeks, based on recommended usage.
Protocol 3 completes the routine. It's the final step of your day, every evening.
The Peptide Regeneration Serum is a Copper Tripeptide-1 based serum formulated to support scalp repair — the advanced optimisation layer of The Protocol system, applied every evening alongside your morning Protocol 1 routine. It's not a shortcut and it's not a standalone solution. It is, however, the most complete expression of what long-term scalp support looks like.
Copper Tripeptide-1 is recognised for its role in supporting tissue repair and the skin's natural regeneration process. Applied to the scalp as part of a structured routine, Protocol 3 is designed to support the scalp environment over the long term.
Precision over hype. Education over exaggeration. This is the BT45 approach — and Protocol 3 is where it reaches its furthest point.
• Copper Tripeptide-1 formulated to support scalp repair
• Applied every evening and left on overnight
• Supports long-term scalp optimisation — not short-term fixes
• Included from day one in the Protocol Starter Systems
• The advanced layer of the full three-step Protocol system
• Consistency and commitment required
• Use every evening.
• Apply 1 mL (one full dropper), mainly to areas of concern, including thinning or thinning-prone areas.
• Apply to a dry or towel-dried scalp and leave on overnight.
• There's no need to wash your scalp between Protocol 1 and Protocol 3.
• Don't apply on your Protocol 2 treatment day. Resume 48 hours after your Protocol 2 treatment.
• One 30 mL bottle lasts approximately 30 days / 4 weeks, based on recommended usage.
Water, Butylene Glycol, Propanediol, Panthenol, 1,2-Hexanediol, Adenosine, Cyclodextrin, Caffeine, Hydroxyacetophenone, Copper Tripeptide-1, Chlorphenesin, Hydrolyzed Sodium Hyaluronate, PPG-26-Buteth-26, Sodium Hyaluronate, PEG-40 Hydrogenated Castor Oil, 10-Hydroxydecanoic Acid, Hydroxypropyl Cyclodextrin, Glycerin, Propylene Glycol, Camellia Sinensis Extract, Ginkgo Biloba Leaf Extract, Apigenin, Azelaic Acid, Oleanolic Acid, Phenoxyethanol, Biotinoyl Tripeptide-1, Urea, Diaminopyrimidine Oxide, Alcohol, Lecithin, Disodium Phosphate, Pyrrolidinyl Diaminopyrimidine Oxide, Biotin, Panax Ginseng Root Extract, Cholesterol, Glycine, Sodium Metabisulfite, Larix Europaea Wood Extract, Dextran, Serenoa Serrulata Fruit Extract, Citric Acid, Acetyl Tetrapeptide-3, Trifolium Pratense (Clover) Flower Extract, Camellia Sinensis Leaf Extract, Zinc Oxide.
UK Delivery
- FREE Royal Mail Tracked 48 on orders over £40
- Royal Mail Tracked 48: £3.99
- Royal Mail Tracked 24: £5.99
Ireland Delivery
- FREE on all orders over €60
- Standard Delivery: €12
- Estimated Delivery Time: 3–5 working days from dispatch
- Orders are shipped via DPD Ireland
Rest of World
- International Shipping: £13.50
- Estimated Delivery Time: 7–14 working days, depending on destination and customs clearance times.
- International customers are responsible for any customs duties, taxes, or import fees that may apply in their country.
Returns
- We accept returns within 14 days of delivery, provided products are unused and in original packaging. Refunds are processed once items are received and inspected. We have a 60 day Hair Guarantee if you are not happy with the product dealt with on a case by case basis.
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Frequently Asked Questions
Everyone's hair and individual circumstances are different, so we don't promise a fixed results timeframe. The Protocol is designed around consistency and ongoing use rather than an overnight fix.
Each Protocol has a specific role, but they work best as a complete system.
Protocol 1 – Daily Foundation Serum
Supports the scalp environment and forms the foundation of your daily routine.
Protocol 2 – Micro-Infusion System
Helps improve the delivery of active ingredients through targeted scalp application.
Protocol 3 – Peptide Regeneration Serum
Contains advanced peptides and supporting ingredients designed to complement the overall system.
You can purchase individual products, but the complete Protocol provides the most comprehensive approach.
Based on recommended usage:
- P1: approximately 30 days / 4 weeks
- P2 6+6: approximately 6 weekly treatments
- P2 12+12: approximately 12 weekly treatments
- P3: approximately 30 days / 4 weeks
Use once weekly. One complete 5 mL vial is intended for one treatment and should be used in full. Do not store remaining serum. Do not use P1 or P3 on treatment day; resume them 48 hours after your P2 treatment.
No. This refers only to the number of P2 treatments provided, not a promised timeframe for results.
The Protocol is currently undergoing clinical and in-person user trials. We'll only make results claims once the relevant evidence has been reviewed.
Most products focus on a single solution.
BT45 The Protocol uses a three-stage system that combines:
- Daily scalp support
- Targeted micro-infusion technology
- Advanced peptide-based scalp care
The system was developed to help men build a consistent routine rather than rely on a single product.
Protocol 1 focuses on daily scalp maintenance and support.
Protocol 2 helps improve ingredient delivery through micro-infusion technology.
Protocol 3 contains advanced peptides, hydration support, botanical extracts, and scalp-conditioning ingredients designed to complement the overall system.
Together, the three Protocols create a structured approach to scalp care, helping men take action early and stay consistent over time.
Orders are typically dispatched within 1–3 working days.
Once your order has been shipped, you will receive tracking information by email. During product launches, promotions, or pre-order periods, dispatch times may be slightly longer and will be clearly communicated on the website.
Yes. Many customers choose to use The Protocol alongside their existing haircare and hair loss routines.
The Protocol is designed to complement a wider scalp care routine and can generally be used alongside other treatments.
As with any new product, if you are currently under medical supervision, taking prescription medication, have an existing scalp condition, or have any concerns about suitability, we always recommend consulting your doctor or healthcare professional before use.
If in doubt, seek professional advice before introducing any new hair or scalp treatment into your routine.
The Protocol is designed for men who want to take a proactive approach to their hair and scalp health.
Whether you're noticing early signs of thinning, changes around the hairline, reduced density through the crown, or simply want to support what you already have, The Protocol is designed to fit into a long-term maintenance routine.
As with any haircare product, individual results will vary.
Hair and scalp care is an ongoing process, not a one-time fix.
Just like going to the gym or maintaining your skin, consistency produces the best long-term results. Many customers choose to continue using The Protocol as part of their regular grooming routine to support their scalp and maintain their progress over time.