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Dog salve
I used a vet shampoo on my dogs and once again - same as happened with the damnable Harz product. There is no LOI on the bottle! I suspect that the preservative system is the vile isothiazolinone again.
Now, I want to mitigate the problem. What can I formulate as a leave-in product to stop itching and heal the lesions? I was thinking of a O/W emulsion but no oil, silicone instead. I’ve got some Polytrap powder and I’ve still got a little D5 in stock (discontinued it in consumer products) so I was thinking, I could see if I could dissolve some Polytrap 6500 in D5, then prepare an O/W emulsion.
Emulsifiers… petrolatum HLB = 10.5 and dimethicone HLB = 5 and D5 about 7.5, so probably an HLB of around 7.5 will be about right? I’ve got Polysorbate 20 and 80, maybe use polysorbate 20 with glyceryl monosterate?
Can anyone suggest a start percentage of emulsifer to silicone mixture?
Next:
Suggested percentage of silicone? Maybe begin with 5%? Is silicone a good ‘soother’?
The aqueous phase, I was thinking of making up a mix of 1% oat flour, 5% hydrolised keratin, 10% aloe vera, 10% calendula, 10% tepezcohuite, have to have a look around to see what else I have that might be useful. Q/S water, preservative I think parabens, no fragrance of course, citric acid Q/S pH=7.
COMMENTS please? -
6 Replies
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That’s bad. Its time to start making the shampoo yourself.
What about a more traditional approach like zinc oxide?. I know nothing about dog skin, but if its OK for a baby…
A basic pomade with petrolatum, 15 or 20% znO and whatever you have to help regenerating.
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I have read about using Aveeno on pets for skin relief before…I would also google for advice on some pet-specific sites, and ask a vet if you can.
LOI for Unscented Aveeno Daily Moisturizing Lotion For Dry Skin:
Water, Glycerin, Distearyldimonium Chloride, Petrolatum, Isopropyl Palmitate, Cetyl Alcohol, Avena Sativa (Oat) Kernel Flour, Benzyl Alcohol, Sodium Chloride.
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I’ll use my own shampoo on the dogs exclusively in future. The salve I want to make is for leave-in and I don’t want to have the coat ending up as a sticky mess of petrolatum. My main issue with the proposed LOI below, is the emulsification of the Polytrap/cyclo mixture.
Phase A
Cyclo (D5)
Polytrap 6500
Polysorbate 20
Glyceryl monostearate
Propyl parabensPhase B
Water
Aloe Vera x10 extract
Calendula extract
Tepex extract
Hydrolysed keratin
Methyl parabensPhase C
DMAE tartrate
Oat flour
TrehaloseProposed method: Dissolve Polytrap in Cyclo, add remaining phase A items. Dissolve phase C in phase B. Add A+B, homogenize.
Possibly use 3% cyclo, 2% Polytrap, how much % emulsifier to use?
Design target = sprayable emulsion at pH=7 -
How about adding some allantoin as soother? It’s also said to stimulate (superficial) wound healing. I’ve recently made an anhydrous balm with 1% allantoin, apparently allantoin doesn’t need to be in a dissolved state per se, disperse it properly (which wasn’t a problem at all!). I preserved it with 0.1 propyl paraben to be on the safe side. I’ve also used cyclo D5 in it btw.
To be honest I have no idea what’s best for a dog’s skin. I know the transdermal barrier of a dog is more permeable than in humans, so I would totally get it if their skins are more sensitive and would react more strongly on isothiazolinones.
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Good idea, but I don’t stock allantoin.
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Zinc is toxic to dogs
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