Retaine — 3-Part Hair Support System for Your GLP-1 Journey

The part no one warned you about

Why hair sheds during rapid weight loss

Not random, and not just you. Here's the biology — minus the scare tactics.

You're eating less — so is your hair

Smaller meals = less vitamin D, zinc, iron and protein. Hair is the first budget your body cuts.

Rapid change can trigger a resting phase

Rapid loss triggers telogen effluvium — mass rest-and-shed mode. It hits months 2–5, seemingly out of nowhere.

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The good news: it's usually temporary

Usually temporary — follicles are alive, just paused. What they rebuild with during this window is the whole game.

Retaine is a dietary supplement that supports hair health and helps fill nutrient gaps when you're eating less. It is not a drug and is not intended to prevent or treat any side effect of any medication. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

One simple daily ritual

Three steps. Morning, coffee, night.

Nutrients. Protein. Scalp. Three gaps, one ritual.

☀ Step 1 · With breakfast

Daily Hair Nutrient Capsules

The exact nutrients your smaller meals skip — every dose on the label.

Vitamin D, zinc & selenium — growth-cycle support
Iron, B12 & biotin — fill the eating-less gap
Ashwagandha — buffers rapid-change stress

☕ Step 2 · In your coffee

Collagen Peptide Powder

Hair is 90% protein. This is the easiest 10 g you'll get all day.

10 g hydrolyzed peptides — the clinical-study dose
Plus lysine, methionine & cysteine — keratin's key aminos
Unflavored, zero grit — vanishes into your coffee

☾ Step 3 · Before bed

Shed-Phase Scalp Serum

Works right where the shedding happens. 30 seconds, before bed.

Peptides — healthy scalp environment
Caffeine — invigorates at the follicle
Weightless, no rinse — apply and sleep

Built for the GLP-1 journey

Why 90 days? Because hair works in cycles.

Hair runs on a months-long cycle — the plan matches it.

Months 1–2

Start protection early

Appetite drops before hair reacts. Top up reserves before the window opens.

Peak shed window

Months 2–5

Stay consistent

The drain, the brush, the ponytail — this is when it shows. Consistency is everything.

Months 5+

Support the regrowth cycle

New strands are built from what's available. Keep the supply coming.

Start my 90-Day Plan

90-day money-back guarantee · Ships within 24 hours

	Retaine	Generic hair vitamins	$88/mo leading hair supplement
Designed for GLP-1 nutrient gaps	✓	✗	✗
Includes 10 g collagen protein daily	✓	✗	✗
Includes topical scalp serum	✓	✗	Sold separately
Price	$199 one-time · 3-month supply	$15–25/mo	$88+/mo
90-day money-back guarantee	✓	Rarely	Varies

Ingredients & transparency

Every dose on the label. Every "why" explained.

No proprietary blends, no pixie dusting. Here's what's inside and the reason each ingredient earned its place.

Vitamin D3 2,000 IU

One of the most commonly under-consumed nutrients on a reduced-calorie diet — it's mostly found in fatty fish, fortified dairy, and eggs, exactly the foods that shrink first when your appetite drops. Vitamin D receptors are present in hair follicles, and adequate vitamin D supports the normal hair growth cycle.

Zinc 15 mg

Zinc supports the hair growth cycle and normal protein synthesis — the process your body uses to build hair. It's concentrated in meat and shellfish, which many people eat far less of when portions shrink. We use a gentle, absorbable form dosed to support without overdoing it (excess zinc can work against you).

Selenium 100 mcg

A trace mineral that supports the hair growth cycle and normal antioxidant function in the body. Deliberately dosed at 100 mcg — enough to support, comfortably below the level where selenium becomes counterproductive. Precision matters more than bigger numbers.

Biotin 5,000 mcg

The best-known hair nutrient, and it earns the reputation: biotin supports keratin production, the protein your hair is built from. Heads up from our formulator: biotin can interfere with certain lab tests, so tell your doctor you're taking it before bloodwork.

Iron + Vitamin B12 18 mg / 500 mcg

Iron supports normal oxygen transport to tissues — including the scalp — and is one of the nutrients most strongly linked to hair health in women. B12 supports normal energy metabolism and red blood cell formation. Both are found mainly in meat, which is often the first thing people can't finish anymore.

Ashwagandha root extract 300 mg

Rapid body change is a stressor, and stress is one of the recognized contributors to temporary shedding. Ashwagandha is an adaptogen traditionally used to help the body manage occasional stress and support a sense of calm — a quiet but meaningful part of the formula.

Hydrolyzed collagen peptides 10 g + lysine, methionine, cysteine

Hair is roughly 90% keratin — a protein. When daily protein intake drops, hair is a low priority for your body. Hydrolyzed collagen provides readily absorbed amino acids, and we add extra lysine, methionine, and cysteine, three amino acids especially relevant to keratin structure. Unflavored, from grass-fed bovine.

Scalp serum: peptides + caffeine topical, nightly

While nutrition works from within, the serum cares for the scalp directly. Topical peptides support a healthy scalp environment, and caffeine invigorates at the follicle level. Lightweight, fragrance-free, and designed to be left in overnight without residue on your pillow.

No proprietary blends — every dose disclosed 3rd-party tested for purity Non-GMO

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Talk to your doctor before adding supplements to your routine, especially alongside prescription medication.

Your 90-day plan

Protect your hair for the whole window

The window spans months — your plan should too.

The complete Retaine system: capsule bottle, collagen pouch, and scalp serum

One plan, everything included:
capsules, collagen & scalp serum — a full 3-month supply.

One-time payment · No subscription

90-Day Hair Protection Plan

Complete system · 3-month supply. One payment — nothing recurring.

$199one time

That's $2.21 a day — less than your daily coffee

3 months of capsules, collagen & serum — $199 total, one payment
Free shipping, every order
No subscription — nothing recurring, nothing to cancel
90-day money-back guarantee

Start my 90-Day Plan

Ships within 24 hours · 90-day money-back guarantee

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Questions, answered honestly

Frequently asked questions

When should I start Retaine?

The best time is early — ideally within your first two months of treatment, before the typical shedding window (months 2–5) begins, so your nutrient reserves are supported in advance. That said, if you're already noticing shedding, starting now still puts support in place for the rest of the window and the regrowth phase that follows.

When will I notice a difference?

Hair works on a slow clock. Most members say the first thing they notice — typically after 8–12 weeks of consistent use — is less hair in the brush and drain, then new baby hairs along the part line. That's why we built this as a 90-day plan and why we don't promise overnight anything. Anyone who does is selling you a story.

Is this kind of shedding permanent?

Usually not. Shedding associated with rapid weight loss is most often telogen effluvium — a temporary shift of follicles into their resting phase. The follicles remain alive, and this type of shedding typically resolves over time as your body adjusts. If your shedding is severe, patchy, or continues long-term, please see your doctor or a dermatologist — that's worth checking properly.

Can I take Retaine with my medication?

Retaine is a dietary supplement — vitamins, minerals, collagen, and a topical serum — not a drug, and it isn't designed to interact with your treatment. That said, everyone's health picture is different, so please talk to your doctor before adding any supplement to your routine, especially alongside a prescription medication such as semaglutide or tirzepatide. Bring the label to your next appointment — every dose is disclosed.

What happens if I stop my GLP-1 medication?

Your hair doesn't run on your prescription schedule — it runs on its own cycle. If you've recently stopped, your hair is still working through the effects of the rapid-change period, so many members continue Retaine for 2–3 months afterward to support the regrowth phase. And if you simply want to stop, that's easy too (see below).

Is this a subscription?

No. The 90-Day Hair Protection Plan is a single $199 payment for the complete 3-month system — nothing recurring, nothing to cancel, no hidden charges. And the 90-day money-back guarantee covers you the whole way.

What are the ingredients? Any allergens?

Everything is listed in the Ingredients section above with exact doses — no proprietary blends. Allergen notes: the collagen is bovine-derived (not vegan; not suitable if you avoid beef products). The capsules and serum are free from gluten, dairy, soy, shellfish, and nuts, and everything is non-GMO and 3rd-party tested. If you have a known allergy or take biotin-sensitive lab tests, check with your doctor first.

How fast is shipping?

Orders placed before 2pm ET ship within 24 hours from our U.S. warehouse, and shipping is free on every order. Most members receive their box in 2–4 business days. Your full 90-day supply arrives in one order — no waiting on refills, and consistency is the whole point.

Losing weight on a GLP-1 — and finding hair everywhere?