Melatonin

price per 100 mg How we compare

Cheapest right now: £1.95 per 100 mg — Melatonin for Dogs. £3.55 per 100 mg median of 9 in-stock listings.

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9 products

Highlight rulesUpdated 8 Oct 2026

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Product	£ / 100 mg ▲	Dose	Package		Size	Form	Rating · Reviews
Melatonin for Dogs, 60ml Liquid Dog Melatonin Drops for Sleep Aid & Dogs Anxiety Relief, Dog Calming Treatment for Noise, Fireworks, Separation & Travel Stress 60 g · 60 srv · 3.8 / 5 Size, dose & details Category Melatonin Dose per serving 10 mg Size 60 g · 60 srv Form Liquid Reviews 35 Availability In stock	£1.95per 100 mg melatoninBest value	10 mg	£11.69Package price	Price drop alert Melatonin for Dogs, 60ml Liquid Dog Melatonin Drops for Sleep Aid & Dogs Anxiety Relief, Dog Calming Treatment for Noise, Fireworks, Separation & Travel Stress — £11.69 One email when this listing gets at least 5% cheaper than the last price you were shown. Nothing else, ever. We first send one confirmation email — the alert only starts once you click the link in it. Every email has a one-click unsubscribe.	60 g · 60 srv	Liquid	3.8 (35)
Melatonin for Pets, Melatonin for Dogs, Sleep Aid for Dogs, Melatonins for Cats, Support Aanxiety & Stress Relief, Promotes Relaxation and Deep Sleep, 2Oz Chicken Flavor 60 g · 60 srv · 3.7 / 5 Size, dose & details Category Melatonin Dose per serving 10 mg Size 60 g · 60 srv Form Liquid Reviews 133 Availability In stock	£2.17per 100 mg melatonin	10 mg	£12.99Package price	Price drop alert Melatonin for Pets, Melatonin for Dogs, Sleep Aid for Dogs, Melatonins for Cats, Support Aanxiety & Stress Relief, Promotes Relaxation and Deep Sleep, 2Oz Chicken Flavor — £12.99 One email when this listing gets at least 5% cheaper than the last price you were shown. Nothing else, ever. We first send one confirmation email — the alert only starts once you click the link in it. Every email has a one-click unsubscribe.	60 g · 60 srv	Liquid	3.7 (133)
K9 Select Melatonin for Dogs - Calming Chews - Dog Melatonin for Sleep - Reduce Stress, Helps Composure Calming Treats for Large Dogs - 6 mg, 120 Peanut Butter Flavored Chewable Tablets 120 tabs · 120 srv · 4.4 / 5 Size, dose & details Category Melatonin Dose per serving 6 mg Size 120 tabs · 120 srv Form Tablets Reviews 169 Availability In stock	£2.57per 100 mg melatonin	6 mg	£18.49Package price	Price drop alert K9 Select Melatonin for Dogs - Calming Chews - Dog Melatonin for Sleep - Reduce Stress, Helps Composure Calming Treats for Large Dogs - 6 mg, 120 Peanut Butter Flavored Chewable Tablets — £18.49 One email when this listing gets at least 5% cheaper than the last price you were shown. Nothing else, ever. We first send one confirmation email — the alert only starts once you click the link in it. Every email has a one-click unsubscribe.	120 tabs · 120 srv	Tablets	4.4 (169)
K9 Select Melatonin for Dogs, 5mg, 180 Tablets, Unflavored 180 tabs · 180 srv · 4.2 / 5 Size, dose & details Category Melatonin Dose per serving 5 mg Size 180 tabs · 180 srv Form Tablets Reviews 648 Availability In stock	£3.11per 100 mg melatonin	5 mg	£27.99Package price	Price drop alert K9 Select Melatonin for Dogs, 5mg, 180 Tablets, Unflavored — £27.99 One email when this listing gets at least 5% cheaper than the last price you were shown. Nothing else, ever. We first send one confirmation email — the alert only starts once you click the link in it. Every email has a one-click unsubscribe.	180 tabs · 180 srv	Tablets	4.2 (648)
Prime Melatonin for Dogs - Calming Aid Tasty Dog Supplement - Helps Overall Health with Quiet Moments and Composure, 5mg-180 Tablets, Chewable 180 tabs · 180 srv Size, dose & details Category Melatonin Dose per serving 5 mg Size 180 tabs · 180 srv Form Tablets Reviews — Availability In stock	£3.55per 100 mg melatonin	5 mg	£31.99Package price	Price drop alert Prime Melatonin for Dogs - Calming Aid Tasty Dog Supplement - Helps Overall Health with Quiet Moments and Composure, 5mg-180 Tablets, Chewable — £31.99 One email when this listing gets at least 5% cheaper than the last price you were shown. Nothing else, ever. We first send one confirmation email — the alert only starts once you click the link in it. Every email has a one-click unsubscribe.	180 tabs · 180 srv	Tablets	—
Neuro Night Sleeping Aid with Griffonia Seed Extract - 90 Vegetarian Capsules - 3 Month Supply - with Natural Melatonin Sources: Magnesium, Chamomile, Lemon Balm, Lavender, Vitamins D & B12 90 caps · 90 srv · 3.8 / 5 Size, dose & details Category Melatonin Dose per serving ~3 mg Size 90 caps · 90 srv Form Capsules Reviews 2,600 Availability In stock 3 ingredients Melatonin—Magnesium—Vitamin B12—	~£7.03per 100 mg melatonin	~3 mg	£18.97Package price	Price drop alert Neuro Night Sleeping Aid with Griffonia Seed Extract - 90 Vegetarian Capsules - 3 Month Supply - with Natural Melatonin Sources: Magnesium, Chamomile, Lemon Balm, Lavender, Vitamins D & B12 — £18.97 One email when this listing gets at least 5% cheaper than the last price you were shown. Nothing else, ever. We first send one confirmation email — the alert only starts once you click the link in it. Every email has a one-click unsubscribe.	90 caps · 90 srv	Capsules	3.8 (2.6k)
Melatonin Drops for Dogs, Dog Calming & Relaxation Drops – Natural Herbal Liquid Supplement with Melatonin, L-Theanine, Ashwagandha & Valerian, Rest & Nighttime Relaxation Support, Bacon Flavour -60ml 60 g · 60 srv · 4 / 5 Size, dose & details Category Melatonin Dose per serving 1 mg Size 60 g · 60 srv Form Liquid Reviews 7 Availability In stock	£10.98per 100 mg melatonin	1 mg	£6.59Package price	Price drop alert Melatonin Drops for Dogs, Dog Calming & Relaxation Drops – Natural Herbal Liquid Supplement with Melatonin, L-Theanine, Ashwagandha & Valerian, Rest & Nighttime Relaxation Support, Bacon Flavour -60ml — £6.59 One email when this listing gets at least 5% cheaper than the last price you were shown. Nothing else, ever. We first send one confirmation email — the alert only starts once you click the link in it. Every email has a one-click unsubscribe.	60 g · 60 srv	Liquid	4 (7)
Sugar Free Sleep Gummies,Night Time Gummies x 90, Natural Melatonin Formula,Promote Relaxation, Helps Improve Sleep Quality, with Magnesium L-Theanine,Gluten Free 90 gummies · 45 srv · 4 / 5 Size, dose & details Category Melatonin Dose per serving ~3 mg Size 90 gummies · 45 srv Form Gummies Reviews 14 Availability In stock 2 ingredients Melatonin—Magnesium—	~£13.10per 100 mg melatonin	~3 mg	£17.69Package price	Price drop alert Sugar Free Sleep Gummies,Night Time Gummies x 90, Natural Melatonin Formula,Promote Relaxation, Helps Improve Sleep Quality, with Magnesium L-Theanine,Gluten Free — £17.69 One email when this listing gets at least 5% cheaper than the last price you were shown. Nothing else, ever. We first send one confirmation email — the alert only starts once you click the link in it. Every email has a one-click unsubscribe.	90 gummies · 45 srv	Gummies	4 (14)
Melatonin for Dogs, Pet Melatonin 60ml, Dog Anxiety Relief, Liquid melatonin Supports Relaxation Dogs & Cat, Helps with Noise, Fireworks, Separation Anxiety & Travel 60 g · 60 srv · 3.9 / 5 Size, dose & details Category Melatonin Dose per serving 1 mg Size 60 g · 60 srv Form Liquid Reviews 179 Availability In stock	£21.65per 100 mg melatonin	1 mg	£12.99Package price	Price drop alert Melatonin for Dogs, Pet Melatonin 60ml, Dog Anxiety Relief, Liquid melatonin Supports Relaxation Dogs & Cat, Helps with Noise, Fireworks, Separation Anxiety & Travel — £12.99 One email when this listing gets at least 5% cheaper than the last price you were shown. Nothing else, ever. We first send one confirmation email — the alert only starts once you click the link in it. Every email has a one-click unsubscribe.	60 g · 60 srv	Liquid	3.9 (179)

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